Originally created by @iurab on GitHub (Aug 7, 2019).
With latest release I can not pass the 2FA security check. It just stays on that page.
In the log, the following error is reported: [2019-08-07 13:06:54][bitwarden_rs::error][ERROR] JsonError. {"TwoFactorProviders":[0],"TwoFactorProviders2":{"0":null},"error":"invalid_grant","error_description":"Two factor required."}
Originally created by @iurab on GitHub (Aug 7, 2019).
With latest release I can not pass the 2FA security check. It just stays on that page.
In the log, the following error is reported:
`[2019-08-07 13:06:54][bitwarden_rs::error][ERROR] JsonError. {"TwoFactorProviders":[0],"TwoFactorProviders2":{"0":null},"error":"invalid_grant","error_description":"Two factor required."}`
I use the 2FA with Authenticator App.
When I pass the master password and arrive at /#/2FA url:
in the docker log the above entry appears
in the browser: POST https://xxx/identity/connect/token 400 zone.js:1152
@iurab commented on GitHub (Aug 9, 2019):
I use the 2FA with Authenticator App.
When I pass the master password and arrive at /#/2FA url:
- in the docker log the above entry appears
- in the browser:
`POST https://xxx/identity/connect/token 400 zone.js:1152 `
Just had a user who's Bitwarden chrome extension got corrupted. They've repaired it, however because of the two factor issue they can't sign back in with it.
Thankfully they have a valid login through the web portal, but I feel this issue needs to be escalated now.
@Ryonez commented on GitHub (Aug 15, 2019):
@dani-garcia
Just had a user who's Bitwarden chrome extension got corrupted. They've repaired it, however because of the two factor issue they can't sign back in with it.
Thankfully they have a valid login through the web portal, but I feel this issue needs to be escalated now.
The U2F problems are separate from this issue I think, usually caused by either an invalid DOMAIN configuration or certificates that aren't accepted.
The 504 errors sound more like a proxy issue, as far as I know.
I'd make sure that the time in both the client and the server are in sync when using TOTP Authentication, if that fails as a temporary measure you can remove the 2fa from the account by editing the database directly, but that can be prone to errors.
Sadly I won't be home until the 19 to test and possibly fix this. Is the bug just with the latest version? Can you go back to an old version to test again? (Make a backup before doing that, as going back in versions isn't supported)
@dani-garcia commented on GitHub (Aug 15, 2019):
The U2F problems are separate from this issue I think, usually caused by either an invalid `DOMAIN` configuration or certificates that aren't accepted.
The 504 errors sound more like a proxy issue, as far as I know.
I'd make sure that the time in both the client and the server are in sync when using TOTP Authentication, if that fails as a temporary measure you can remove the 2fa from the account by editing the database directly, but that can be prone to errors.
Sadly I won't be home until the 19 to test and possibly fix this. Is the bug just with the latest version? Can you go back to an old version to test again? (Make a backup before doing that, as going back in versions isn't supported)
504 Error
As far as I can make out that's what the reverse proxy is returning (it manages the certs) as the bitwarden_rs container is timing out during the 'https://vault.alteria.xyz/identity/connect/token' POST
TOTP Time Sync
Checking the time between the server, the bitwarden_rs container and my computer, the time is completely in sync.
As to if the bug is just in the latest version, I do not know. I've only recently found it after seeing this post and testing myself to confirm. Unfortunately this was still a problem when my user's chrome extension had issues.
This is also a live service on my end atm, I can't readily revert a version to testing without interrupting the service. Easiest way to check would be to spin up a new container with an older image to test sorry.
@Ryonez commented on GitHub (Aug 15, 2019):
Testing on my end:
- 504 Error
As far as I can make out that's what the reverse proxy is returning (it manages the certs) as the bitwarden_rs container is timing out during the 'https://vault.alteria.xyz/identity/connect/token' POST
- TOTP Time Sync
Checking the time between the server, the bitwarden_rs container and my computer, the time is completely in sync.
As to if the bug is just in the latest version, I do not know. I've only recently found it after seeing this post and testing myself to confirm. Unfortunately this was still a problem when my user's chrome extension had issues.
This is also a live service on my end atm, I can't readily revert a version to testing without interrupting the service. Easiest way to check would be to spin up a new container with an older image to test sorry.
The U2F problems are separate from this issue I think, usually caused by either an invalid DOMAIN configuration or certificates that aren't accepted.
You are absolutely right.
I saw the same problem with bitwarden_rw 2.11.0 on a self-hosted installation:
Within the docker-container, there’s a file /web-vault/app-id.json:
root@89d7996a4efd:/web-vault# cat /web-vault/app-id.json { "trustedFacets": [ { "version": { "major": 1, "minor": 0 }, "ids": [ "https://vault.bitwarden.com", "ios:bundle-id:com.8bit.bitwarden", "android:apk-key-hash:dUGFzUzf3lmHSLBDBIv+WaFyZMI" ] } ] }
Within the docker container (docker exec -it bitwarden.service bash), I had to modify the url in that file and used sed -i -e ‘s/vault.bitwarden.com/bitwarden.myhost.com/g’ /web-vault/app-id.json
I should have read the instructions better, especially point 9 on modifying app-id.json.
Can you please review my update of the manual on the installation of bitwarden_rs in docker, specifically on enabling U2F: it only mentions to se the DOMAIN-value to a proper url, but additional modification of the app-id.json-file is required.
Maybe this gap derived from the bitwarden source itself, as several users reported it in the bitwarden-forums.
@gstammw commented on GitHub (Aug 16, 2019):
>
>
> The U2F problems are separate from this issue I think, usually caused by either an invalid `DOMAIN` configuration or certificates that aren't accepted.
>
You are absolutely right.
I saw the same problem with bitwarden_rw 2.11.0 on a self-hosted installation:
Within the docker-container, there’s a file /web-vault/app-id.json:
`root@89d7996a4efd:/web-vault# cat /web-vault/app-id.json
{
"trustedFacets": [
{
"version": {
"major": 1,
"minor": 0
},
"ids": [
"https://vault.bitwarden.com",
"ios:bundle-id:com.8bit.bitwarden",
"android:apk-key-hash:dUGFzUzf3lmHSLBDBIv+WaFyZMI"
]
}
]
}
`
Within the docker container (`docker exec -it bitwarden.service bash`), I had to modify the url in that file and used
`sed -i -e ‘s/vault.bitwarden.com/bitwarden.myhost.com/g’ /web-vault/app-id.json
`
I should have read the instructions better, especially [point 9 on modifying app-id.json](https://help.bitwarden.com/article/install-on-premise/#install-bitwarden).
Can you please review my update of the manual on the installation of bitwarden_rs in docker, specifically on [enabling U2F](https://github.com/dani-garcia/bitwarden_rs/wiki/Enabling-U2F-authentication): it only mentions to se the DOMAIN-value to a proper url, but additional modification of the app-id.json-file is required.
Maybe this gap derived from the bitwarden source itself, as [several users reported it in the bitwarden-forums](https://community.bitwarden.com/t/solved-u2f-in-chrome/4554/4).
Any progress? This is kinda urgent, the user having issues is one I finally convinced to shift away from keypass.
@Ryonez commented on GitHub (Aug 21, 2019):
Any progress? This is kinda urgent, the user having issues is one I finally convinced to shift away from keypass.
@Ryonez @iurab I've tried to debug this and it seems to work fine for me so I'm not sure where the failure comes from.
Two things:
The error [ERROR] JsonError. {"TwoFactorProviders":[0],"TwoFactorProvide ... is expected, that's how the server communicates to the clients that user and pass is not enough and the clients need a second factor. Try to see if there's any error after this one, or in the browsers console.
@dani-garcia commented on GitHub (Aug 21, 2019):
@gstammw There's no need to modify that file, we serve the correct contents from here, instead of modifying the file: https://github.com/dani-garcia/bitwarden_rs/blob/d23d4f2c1dc0a1c41e91adfa69cfa30a7211126f/src/api/web.rs#L31-L47.
@Ryonez @iurab I've tried to debug this and it seems to work fine for me so I'm not sure where the failure comes from.
Two things:
- The error `[ERROR] JsonError. {"TwoFactorProviders":[0],"TwoFactorProvide ...` is expected, that's how the server communicates to the clients that user and pass is not enough and the clients need a second factor. Try to see if there's any error after this one, or in the browsers console.
- I've added in https://github.com/dani-garcia/bitwarden_rs/commit/026f9da035dcbf5ff12387600162841f94b47154 a button to the admin panel to remove the second factors from a specific user, if everything else fails, the admin can remove them to let the user log in.
I'll try to look into this more.
Later on today I'll clone my instance's database and spin up another bitwardenrs container to step back through the versions to see if I can find a spot it isn't an issue.
Regarding disabling a users 2FA, will there be any adverse side affects?
About later errors, I did find some, they were posted above.
@Ryonez commented on GitHub (Aug 21, 2019):
Thank you.
Later on today I'll clone my instance's database and spin up another bitwardenrs container to step back through the versions to see if I can find a spot it isn't an issue.
Regarding disabling a users 2FA, will there be any adverse side affects?
About later errors, I did find some, they were posted above.
Yeah, it's basically the equivalent of logging in as a user and removing them one by one.
Hmm, I just saw the latest errors, and they don't make much sense, they are making a GET request to the login endpoint, when it should be a POST request:
[2019-08-16 10:51:48][rocket::rocket][INFO] GET /identity/connect/token:
[2019-08-16 10:51:48][_][INFO] Matched: GET /<p..> [10] (web_files)
In fact I just checked the web vault code, and they only make POST requests to that endpoint, so no idea what could be causing that ¯\_(ツ)_/¯
@dani-garcia commented on GitHub (Aug 21, 2019):
Yeah, it's basically the equivalent of logging in as a user and removing them one by one.
Hmm, I just saw the latest errors, and they don't make much sense, they are making a GET request to the login endpoint, when it should be a POST request:
```
[2019-08-16 10:51:48][rocket::rocket][INFO] GET /identity/connect/token:
[2019-08-16 10:51:48][_][INFO] Matched: GET /<p..> [10] (web_files)
```
In fact I just checked the web vault code, and they only make POST requests to that endpoint, so no idea what could be causing that ¯\\\_(ツ)\_/¯
Alrighty. I'll disable this user's 2fa for now, then clone, do some testing later and get back you you with the results.
@Ryonez commented on GitHub (Aug 21, 2019):
Alrighty. I'll disable this user's 2fa for now, then clone, do some testing later and get back you you with the results.
To start with, the issue isn't with TOTP itself, it's somewhere else in the code.
Dropping back to version 1.9.0 breaks login completely. It'll say I have an incorrect username/password, doesn't even get to the TOTP stage.
Going back to my main instance, I disabled TOTP, then re-enabled it. This hasn't helped.
Interesting notes:
Giving the wrong TOTP code does make the page say you have an invalid code.
NEW ISSUE, DISABLING TOTP JUST MAKES THE PROBLEM HAPPEN AFTER CLICKING LOGIN (after entering your username and password)
I tested a copy without the reverse proxy. A direct connection to the container results with the Continue button spinning forever. Of course the reverse proxy won't take this and returns a timeout so a client can continue on. Refreshing the page causes a network error message to pop up briefly.
Giving the right results in the page saying an unexpected error occurred. The post result is below (This is with the reverse proxy enabled):
05:23:40.712 XHRPOSThttps://vault.alteria.xyz/identity/connect/token
[HTTP/2.0 504 Gateway Timeout 60008ms]
Request URL:https://vault.alteria.xyz/identity/connect/token
Request method:POST
Remote address:XXX.XXX.XXX.XXX:443
Status code:
504
Version:HTTP/2.0
Response headers (230 B)
Raw headers
content-length
167
content-type
text/html
date
Wed, 21 Aug 2019 17:24:39 GMT
server
nginx/1.16.1
strict-transport-security
max-age=63072000; includeSubDomains; preload
X-Firefox-Spdy
h2
Request headers (451 B)
Raw headers
Accept
application/json
Accept-Encoding
gzip, deflate, br
Accept-Language
en-US,en;q=0.5
Connection
keep-alive
Content-Length
304
Content-Type
application/x-www-form-urlencoded; charset=utf-8
Device-Type
10
Host
vault.alteria.xyz
Origin
https://vault.alteria.xyz
Referer
https://vault.alteria.xyz/
TE
Trailers
User-Agent
Mozilla/5.0 (Windows NT 10.0; …) Gecko/20100101 Firefox/68.0
@Ryonez commented on GitHub (Aug 21, 2019):
Okay.
To start with, the issue isn't with TOTP itself, it's somewhere else in the code.
Dropping back to version 1.9.0 breaks login completely. It'll say I have an incorrect username/password, doesn't even get to the TOTP stage.
Going back to my main instance, I disabled TOTP, then re-enabled it. This hasn't helped.
Interesting notes:
* Giving the wrong TOTP code does make the page say you have an invalid code.
* NEW ISSUE, DISABLING TOTP JUST MAKES THE PROBLEM HAPPEN AFTER CLICKING LOGIN (after entering your username and password)
* I tested a copy without the reverse proxy. A direct connection to the container results with the Continue button spinning forever. Of course the reverse proxy won't take this and returns a timeout so a client can continue on. Refreshing the page causes a network error message to pop up briefly.
* Giving the right results in the page saying an unexpected error occurred. The post result is below (This is with the reverse proxy enabled):
```
05:23:40.712 XHRPOSThttps://vault.alteria.xyz/identity/connect/token
[HTTP/2.0 504 Gateway Timeout 60008ms]
Request URL:https://vault.alteria.xyz/identity/connect/token
Request method:POST
Remote address:XXX.XXX.XXX.XXX:443
Status code:
504
Version:HTTP/2.0
Response headers (230 B)
Raw headers
content-length
167
content-type
text/html
date
Wed, 21 Aug 2019 17:24:39 GMT
server
nginx/1.16.1
strict-transport-security
max-age=63072000; includeSubDomains; preload
X-Firefox-Spdy
h2
Request headers (451 B)
Raw headers
Accept
application/json
Accept-Encoding
gzip, deflate, br
Accept-Language
en-US,en;q=0.5
Connection
keep-alive
Content-Length
304
Content-Type
application/x-www-form-urlencoded; charset=utf-8
Device-Type
10
Host
vault.alteria.xyz
Origin
https://vault.alteria.xyz
Referer
https://vault.alteria.xyz/
TE
Trailers
User-Agent
Mozilla/5.0 (Windows NT 10.0; …) Gecko/20100101 Firefox/68.0
```
Postmortem
Fault:
> At some point users became unable to login.
Cause:
> An email varible was incorect and caused the email componant to silently error. This caused the logins and anything that's related to having an email sent to timeout or fail. Sometime ago I changed the email config to use SLL instead of startTLS. I was unawear the changes failed, and by the time the consequences became apparent I'd forgotten about the change.
There doesn't seem to be many checks if the email system fails. It'll either timeout or return unknown errors. And it's present all the way back to version 1.8.0
There also isn't any error posted to the logs, which made diagnosing this much harder. I'd recommend popping something in so it goes into the log at least.
@dani-garcia
For @iurab, check your email settings are valid!
@Ryonez commented on GitHub (Aug 31, 2019):
Figured it out on my end:
```
Postmortem
Fault:
> At some point users became unable to login.
Cause:
> An email varible was incorect and caused the email componant to silently error. This caused the logins and anything that's related to having an email sent to timeout or fail. Sometime ago I changed the email config to use SLL instead of startTLS. I was unawear the changes failed, and by the time the consequences became apparent I'd forgotten about the change.
```
There doesn't seem to be many checks if the email system fails. It'll either timeout or return unknown errors. And it's present all the way back to version 1.8.0
There also isn't any error posted to the logs, which made diagnosing this much harder. I'd recommend popping something in so it goes into the log at least.
@dani-garcia
For @iurab, check your email settings are valid!
Looks like this may have been the cause. New setting for me, but wasn't disabled by default.
In fact that whole section of the admin page only started working once I fixed the email settings.
@Ryonez commented on GitHub (Aug 31, 2019):

Looks like this may have been the cause. New setting for me, but wasn't disabled by default.
In fact that whole section of the admin page only started working once I fixed the email settings.
Well, it should already be false by default, so don't know how we can improve this any further.
Since it does state if the e-mail fails, to login fails, so that will be the consequences of having that checkbox enabled.
@BlackDex commented on GitHub (Oct 5, 2020):
Well, it should already be `false` by default, so don't know how we can improve this any further.
Since it does state if the e-mail fails, to login fails, so that will be the consequences of having that checkbox enabled.
Looking up above one of the problems was that the email component was silently failing.
Having that would be an improvement for those who wish to enable email configuration.
If that has been changed all good, just there's not commit or comment about that change here if it's happened.
@Ryonez commented on GitHub (Oct 5, 2020):
Looking up above one of the problems was that the email component was silently failing.
Having that would be an improvement for those who wish to enable email configuration.
If that has been changed all good, just there's not commit or comment about that change here if it's happened.
Well a lot has been changed regarding email handling.
So, if sending fails you should receive an error, or at least in the bitwarden.log file. If you still have a specific scenario where this isn't the case we can try to fix them of course.
If you have some cases we can reopen this of course.
@BlackDex commented on GitHub (Oct 5, 2020):
Well a lot has been changed regarding email handling.
So, if sending fails you should receive an error, or at least in the bitwarden.log file. If you still have a specific scenario where this isn't the case we can try to fix them of course.
If you have some cases we can reopen this of course.
Blocking a user prevents them from interacting with repositories, such as opening or commenting on pull requests or issues. Learn more about blocking a user.
Originally created by @iurab on GitHub (Aug 7, 2019).
With latest release I can not pass the 2FA security check. It just stays on that page.
In the log, the following error is reported:
[2019-08-07 13:06:54][bitwarden_rs::error][ERROR] JsonError. {"TwoFactorProviders":[0],"TwoFactorProviders2":{"0":null},"error":"invalid_grant","error_description":"Two factor required."}@dani-garcia commented on GitHub (Aug 8, 2019):
What two factor provider are you using?, Any error messages on the browsers console?
@iurab commented on GitHub (Aug 9, 2019):
I use the 2FA with Authenticator App.
When I pass the master password and arrive at /#/2FA url:
POST https://xxx/identity/connect/token 400 zone.js:1152@Ryonez commented on GitHub (Aug 13, 2019):
I'm having the same issue, though I'm getting a 504, Gateway Timeout.
@Ryonez commented on GitHub (Aug 15, 2019):
@dani-garcia
Just had a user who's Bitwarden chrome extension got corrupted. They've repaired it, however because of the two factor issue they can't sign back in with it.
Thankfully they have a valid login through the web portal, but I feel this issue needs to be escalated now.
@dani-garcia commented on GitHub (Aug 15, 2019):
The U2F problems are separate from this issue I think, usually caused by either an invalid
DOMAINconfiguration or certificates that aren't accepted.The 504 errors sound more like a proxy issue, as far as I know.
I'd make sure that the time in both the client and the server are in sync when using TOTP Authentication, if that fails as a temporary measure you can remove the 2fa from the account by editing the database directly, but that can be prone to errors.
Sadly I won't be home until the 19 to test and possibly fix this. Is the bug just with the latest version? Can you go back to an old version to test again? (Make a backup before doing that, as going back in versions isn't supported)
@Ryonez commented on GitHub (Aug 15, 2019):
Testing on my end:
504 Error
As far as I can make out that's what the reverse proxy is returning (it manages the certs) as the bitwarden_rs container is timing out during the 'https://vault.alteria.xyz/identity/connect/token' POST
TOTP Time Sync
Checking the time between the server, the bitwarden_rs container and my computer, the time is completely in sync.
As to if the bug is just in the latest version, I do not know. I've only recently found it after seeing this post and testing myself to confirm. Unfortunately this was still a problem when my user's chrome extension had issues.
This is also a live service on my end atm, I can't readily revert a version to testing without interrupting the service. Easiest way to check would be to spin up a new container with an older image to test sorry.
@Ryonez commented on GitHub (Aug 15, 2019):
Wow, I found after writing that up that more was added to the logs around 10 mins later, and it looks related to the TOTP issue::
@gstammw commented on GitHub (Aug 16, 2019):
You are absolutely right.
I saw the same problem with bitwarden_rw 2.11.0 on a self-hosted installation:
Within the docker-container, there’s a file /web-vault/app-id.json:
root@89d7996a4efd:/web-vault# cat /web-vault/app-id.json { "trustedFacets": [ { "version": { "major": 1, "minor": 0 }, "ids": [ "https://vault.bitwarden.com", "ios:bundle-id:com.8bit.bitwarden", "android:apk-key-hash:dUGFzUzf3lmHSLBDBIv+WaFyZMI" ] } ] }Within the docker container (
docker exec -it bitwarden.service bash), I had to modify the url in that file and usedsed -i -e ‘s/vault.bitwarden.com/bitwarden.myhost.com/g’ /web-vault/app-id.jsonI should have read the instructions better, especially point 9 on modifying app-id.json.
Can you please review my update of the manual on the installation of bitwarden_rs in docker, specifically on enabling U2F: it only mentions to se the DOMAIN-value to a proper url, but additional modification of the app-id.json-file is required.
Maybe this gap derived from the bitwarden source itself, as several users reported it in the bitwarden-forums.
@Ryonez commented on GitHub (Aug 21, 2019):
Any progress? This is kinda urgent, the user having issues is one I finally convinced to shift away from keypass.
@dani-garcia commented on GitHub (Aug 21, 2019):
@gstammw There's no need to modify that file, we serve the correct contents from here, instead of modifying the file: https://github.com/dani-garcia/bitwarden_rs/blob/d23d4f2c1dc0a1c41e91adfa69cfa30a7211126f/src/api/web.rs#L31-L47.
@Ryonez @iurab I've tried to debug this and it seems to work fine for me so I'm not sure where the failure comes from.
Two things:
The error
[ERROR] JsonError. {"TwoFactorProviders":[0],"TwoFactorProvide ...is expected, that's how the server communicates to the clients that user and pass is not enough and the clients need a second factor. Try to see if there's any error after this one, or in the browsers console.I've added in https://github.com/dani-garcia/bitwarden_rs/commit/026f9da035dcbf5ff12387600162841f94b47154 a button to the admin panel to remove the second factors from a specific user, if everything else fails, the admin can remove them to let the user log in.
I'll try to look into this more.
@Ryonez commented on GitHub (Aug 21, 2019):
Thank you.
Later on today I'll clone my instance's database and spin up another bitwardenrs container to step back through the versions to see if I can find a spot it isn't an issue.
Regarding disabling a users 2FA, will there be any adverse side affects?
About later errors, I did find some, they were posted above.
@dani-garcia commented on GitHub (Aug 21, 2019):
Yeah, it's basically the equivalent of logging in as a user and removing them one by one.
Hmm, I just saw the latest errors, and they don't make much sense, they are making a GET request to the login endpoint, when it should be a POST request:
In fact I just checked the web vault code, and they only make POST requests to that endpoint, so no idea what could be causing that ¯\_(ツ)_/¯
@Ryonez commented on GitHub (Aug 21, 2019):
Alrighty. I'll disable this user's 2fa for now, then clone, do some testing later and get back you you with the results.
@Ryonez commented on GitHub (Aug 21, 2019):
Okay.
To start with, the issue isn't with TOTP itself, it's somewhere else in the code.
Dropping back to version 1.9.0 breaks login completely. It'll say I have an incorrect username/password, doesn't even get to the TOTP stage.
Going back to my main instance, I disabled TOTP, then re-enabled it. This hasn't helped.
Interesting notes:
@Ryonez commented on GitHub (Aug 31, 2019):
Figured it out on my end:
There doesn't seem to be many checks if the email system fails. It'll either timeout or return unknown errors. And it's present all the way back to version 1.8.0
There also isn't any error posted to the logs, which made diagnosing this much harder. I'd recommend popping something in so it goes into the log at least.
@dani-garcia
For @iurab, check your email settings are valid!
@Ryonez commented on GitHub (Aug 31, 2019):
Looks like this may have been the cause. New setting for me, but wasn't disabled by default.
In fact that whole section of the admin page only started working once I fixed the email settings.
@sgabe commented on GitHub (Sep 24, 2019):
I just ran into this issue as well. I was able to login again after I removed the e-mail configuration.
@Ryonez commented on GitHub (Sep 25, 2019):
@dani-garcia We may have found the cause.
@Ryonez commented on GitHub (Oct 5, 2020):
Was this looked at for solutions to prevent this in the future?
@BlackDex commented on GitHub (Oct 5, 2020):
Well, it should already be
falseby default, so don't know how we can improve this any further.Since it does state if the e-mail fails, to login fails, so that will be the consequences of having that checkbox enabled.
@Ryonez commented on GitHub (Oct 5, 2020):
Looking up above one of the problems was that the email component was silently failing.
Having that would be an improvement for those who wish to enable email configuration.
If that has been changed all good, just there's not commit or comment about that change here if it's happened.
@BlackDex commented on GitHub (Oct 5, 2020):
Well a lot has been changed regarding email handling.
So, if sending fails you should receive an error, or at least in the bitwarden.log file. If you still have a specific scenario where this isn't the case we can try to fix them of course.
If you have some cases we can reopen this of course.
@Ryonez commented on GitHub (Oct 5, 2020):
Sweet as, thank you for responding.