SMTP not connecting: SMTP IO error: Resource temporarily unavailable (os error 11) #2741

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MrUnknownDE · 2026-04-06T04:02:18+02:00

MrUnknownDE commented

2026-04-06 04:02:18 +02:00

Originally created by @jean-io on 10/28/2020

Hello,

For some reason sending email with SMTP is not working with bitwarden_rs latest image. I get the following error in my log file: SMTP IO error: Resource temporarily unavailable (os error 11). My understanding is this error is caused by the host and not from the remote SMTP server.
No luck on troubleshooting this issue so far...

Environment

Bitwarden_rs version: 1.17.0
Install method: Docker (latest)
Clients used: web ui

Extract of my docker compose file:

version: "3"

services:
  bitwarden_rs:
    hostname: 'XXX-BITWARDEN-CONTAINER'
    container_name: bitwarden_xxx
    image: bitwardenrs/server:latest
    ports:
      - "127.0.0.1:8004:80/tcp"
    environment:
      DOMAIN: "https://xxx"
      SIGNUPS_ALLOWED: "false"
      DATABASE_URL: "mysql://bitwarden:xxx@xxx/xxx"
      ENABLE_DB_WAL: "false"
      SMTP_HOST: "xxx"
      SMTP_FROM: "xxx"
      SMTP_PORT: 465
      SMTP_SSL: "true"
      SMTP_USERNAME: "xxx"
      SMTP_PASSWORD: "xxx"
      #LOG_LEVEL: "warn"
    volumes:
      - '/etc/hosts:/etc/hosts'
      - './bw_data/:/data/'
    restart: unless-stopped

Relevant logs

[2020-10-28 13:56:49.011][request][INFO] POST /api/accounts/verify-email
[2020-10-28 13:57:09.604][bitwarden_rs::api::core::accounts][ERROR] Error sending delete account email: SMTP IO error: Resource temporarily unavailable (os error 11)
[2020-10-28 13:57:09.604][response][INFO] POST /api/accounts/verify-email (post_verify_email) => 200 OK
[2020-10-28 14:39:58.788][request][INFO] POST /api/organizations/XXX/users/XXX/reinvite
[2020-10-28 14:40:18.619][error][ERROR] SMTP IO error: Resource temporarily unavailable (os error 11)
[2020-10-28 14:40:18.619][response][INFO] POST /api/organizations/<org_id>/users/<user_org>/reinvite (reinvite_user) => 400 Bad Request

*Originally created by @jean-io on 10/28/2020* Hello, For some reason sending email with SMTP is not working with bitwarden_rs latest image. I get the following error in my log file: `SMTP IO error: Resource temporarily unavailable (os error 11)`. My understanding is this error is caused by the host and not from the remote SMTP server. No luck on troubleshooting this issue so far... ### Environment * Bitwarden_rs version: 1.17.0 * Install method: Docker (latest) * Clients used: web ui Extract of my docker compose file: ``` version: "3" services: bitwarden_rs: hostname: 'XXX-BITWARDEN-CONTAINER' container_name: bitwarden_xxx image: bitwardenrs/server:latest ports: - "127.0.0.1:8004:80/tcp" environment: DOMAIN: "https://xxx" SIGNUPS_ALLOWED: "false" DATABASE_URL: "mysql://bitwarden:xxx@xxx/xxx" ENABLE_DB_WAL: "false" SMTP_HOST: "xxx" SMTP_FROM: "xxx" SMTP_PORT: 465 SMTP_SSL: "true" SMTP_USERNAME: "xxx" SMTP_PASSWORD: "xxx" #LOG_LEVEL: "warn" volumes: - '/etc/hosts:/etc/hosts' - './bw_data/:/data/' restart: unless-stopped ``` ### Relevant logs ``` [2020-10-28 13:56:49.011][request][INFO] POST /api/accounts/verify-email [2020-10-28 13:57:09.604][bitwarden_rs::api::core::accounts][ERROR] Error sending delete account email: SMTP IO error: Resource temporarily unavailable (os error 11) [2020-10-28 13:57:09.604][response][INFO] POST /api/accounts/verify-email (post_verify_email) => 200 OK [2020-10-28 14:39:58.788][request][INFO] POST /api/organizations/XXX/users/XXX/reinvite [2020-10-28 14:40:18.619][error][ERROR] SMTP IO error: Resource temporarily unavailable (os error 11) [2020-10-28 14:40:18.619][response][INFO] POST /api/organizations/<org_id>/users/<user_org>/reinvite (reinvite_user) => 400 Bad Request ```

MrUnknownDE closed this issue

2026-04-06 04:02:18 +02:00

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Reference: github/vaultwarden#2741