SMTP Unable to Send Email

Help
1

I am unable to send any email via SMTP. I have a working instance other than that, it seems that way so far anyway. I get this error from the admin panel and from the send validation email when you log into the vault. I have tried Google, M$ and my own SMTP information, which I have confirmed all working.

[2020-06-11 19:23:04][bitwarden_rs::api::identity][ERROR] Error sending new device email: SmtpError.
[CAUSE] Io(
Os {
code: 11,
kind: WouldBlock,
message: “Resource temporarily unavailable”,
},
)

I have no other warnings or errors in the logs. Any ideas or need any additional info from me?

[edit]
docker-compose info:

bitwarden:
container_name: bitwarden
image: bitwardenrs/server:latest
restart: always
networks:
- $DEFAULT_NETWORK
security_opt:
- no-new-privileges:true
volumes:
- $USERDIR/docker/bitwarden:/data
- /var/log/docker:/var/log/docker
- /etc/timezone:/etc/timezone:ro
- /etc/localtime:/etc/localtime:ro
environment:
- SIGNUPS_ALLOWED=true # Change to false after first login
- INVITATIONS_ALLOWED=true # Send invitation using admin page
- WEBSOCKET_ENABLED=true
- LOG_FILE=/var/log/docker/bitwarden.log
- SMTP_HOST=$SMTP_SERVER
- SMTP_FROM=$SMTP_SERVER_USER
- SMTP_PORT=$SMTP_SERVER_PORT
- SMTP_SSL=true
- SMTP_USERNAME=$SMTP_SERVER_USER
- SMTP_PASSWORD=$SMTP_SERVER_PASSWORD
- DOMAIN=https://bw.$DOMAINNAME
#- DISABLE_ADMIN_TOKEN=true ### USE WITH CAUTION!! Access admin page at bw.$DOMAINNAME/admin to send invitations - anyone can access, add authorization!!!
labels:
- “traefik.enable=true”
## HTTP Routers
- “traefik.http.routers.bitwarden-rtr.entrypoints=https”
- “traefik.http.routers.bitwarden-rtr.rule=Host(bw.$DOMAINNAME)”
- “traefik.http.routers.bitwarden-rtr.priority=10”
- “traefik.http.routers.bitwarden-rtr.tls=true”
## Middlewares
- “traefik.http.routers.bitwarden-rtr.middlewares=chain-oauth@file” # Google OAuth 2.0
## HTTP Services
- “traefik.http.routers.bitwarden-rtr.service=bitwarden-svc”
- “traefik.http.services.bitwarden-svc.loadbalancer.server.port=80”
## Bitwarden WebSocket
- “traefik.http.routers.bitwardenHub-rtr.entrypoints=https”
- “traefik.http.routers.bitwardenHub-rtr.rule=(Host(bw.$DOMAINNAME) && Path(/notifications/hub))”
- “traefik.http.routers.bitwardenHub-rtr.priority=20”
- “traefik.http.routers.bitwardenHub-rtr.tls=true”
- “traefik.http.routers.bitwardenHub-rtr.service=bitwardenHub-svc”
- “traefik.http.services.bitwardenHub-svc.loadbalancer.server.port=3012”

[edit 2]
My BW domain is different than my SMTP domain. I can’t see why this would bother anything…

2

It looks like the smtp server is not reachable with the parameters given.
Please check if the host and port are correct.

4

Thanks for the reply.

No matter what I place in the admin settings this is the error:

[2020-06-16 15:01:57][error][ERROR] SmtpError.,
[CAUSE] Io(,
Os {,
code: 11,
kind: WouldBlock,
message: “Resource temporarily unavailable”,
},
),
[2020-06-16 15:01:57][response][INFO] POST /admin/test/smtp (test_smtp) => 400 Bad Request,

I have many other apps working from the same server, all using the same SMTP credentials. Any advice?

5

Is DNS working?
You could check the diagnostics page in the /admin interface.

Also, try to increase the smtp_timeout from the default 15 to 30 or 60 even and see what happens then.

6

Please see screenies below. Still failed at 60. I assume diag page is OK.

bw-diag-page
bw-diag-page722×413 26.5 KB
bw-smtp-settings
bw-smtp-settings1006×705 53.3 KB

7

Just to be sure, you did do a save of the settings when you changed the timeout to 60 before you tried the test again right?

If so, was the error message still the same?

8

:laughing: Upon your first reply, when I tested again this morning, I thought I was forgetting to click save each time, turns out I was indeed clicking save this time and the prior times.

Anyway, yes, the same error. It doesn’t seem to matter what I put in there, just the same error over and over with working / non-working SMTP credentials.

All I know for sure is, it is specific to this container. I was hoping there would be lots of other info on the forums/github but alas, it seems to be me. I just wish there was a better error message to go off of.

9

Follow Up Here:

Outlook SMTP working
GMAIL SMTP working
Personal SMTP not working - I have no idea why not. It works on all my other apps.

Anyway, I’m just happy one of them is working. Maybe it was an update, maybe I am fried. WHO knows!

10

Have you checked if “Less secure Apps” is authorized in your Gmail / Google account ?
Google Account / Security
Less secure App -> Autorize.

To be more secure:
Activate 2FA autentication ingoogle account
Then Create an App-specific Password.

11

I used the less secure option for gmail. I wont be using their service but thanks for following up!