Can't send email from local MTA (exim4) #1263

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MrUnknownDE · 2026-04-06T01:42:57+02:00

MrUnknownDE commented

2026-04-06 01:42:57 +02:00

Originally created by @zevilz on 1/29/2024

I have working exim4 on server. Vaultwarden installed without Docker.

vars USE_SENDMAIL=true and SMTP_FROM=user@mysite.com defined in /etc/vaultwarden.env;
user vaultwarden added to group Debian-exim
changed rights to directory /var/spool/exim4 from 750 to 770 (owner Debian-exim and group Debian-exim).

But i have error during in "Test SMTP" section:

Error sending SMTP test email
Sendmail client error: internal client error: 2024-01-29 12:32:11 1rUNzv-001b0k-31 Failed to create spool file /var/spool/exim4//input//1rUNzv-001b0k-31-D: Read-only file system
2024-01-29 12:32:11 1rUNzv-001b0k-31 Failed to create spool file /var/spool/exim4//input//1rUNzv-001b0k-31-D: Read-only file system
2024-01-29 12:32:11 1rUNzv-001b0k-31 Failed to create spool file /var/spool/exim4//input//1rUNzv-001b0k-31-D: Read-only file system

Then i add folowing lines to vaultwarden systemd service like this:

RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 AF_LOCAL AF_NETLINK
ReadWritePaths=/var/lib/vaultwarden /var/spool/exim4

But have error:

Error sending SMTP test email
Sendmail client error: internal client error: 2024-01-29 10:28:53 1rUM4b-001ajq-2K exim.c:878: chown(/var/spool/exim4//input//1rUM4b-001ajq-2K-D, 103:110) failed (Operation not permitted). Please contact the authors and refer to https://bugs.exim.org/show_bug.cgi?id=2391
2024-01-29 10:28:53 1rUM4b-001ajq-2K exim.c:878: chown(/var/spool/exim4//input//1rUM4b-001ajq-2K-D, 103:110) failed (Operation not permitted). Please contact the authors and refer to https://bugs.exim.org/show_bug.cgi?id=2391
2024-01-29 10:28:53 1rUM4b-001ajq-2K exim.c:878: chown(/var/spool/exim4//input//1rUM4b-001ajq-2K-D, 103:110) failed (Operation not permitted). Please contact the authors and refer to https://bugs.exim.org/show_bug.cgi?id=2391

drwxrwx--- 2 Debian-exim Debian-exim 4096 Jan 29 12:48 .
drwxr-x--- 5 Debian-exim Debian-exim 4096 Jan 26 16:22 ..
-rw-r----- 1 Debian-exim Debian-exim  464 Jan 28 00:00 1rTpmX-000Ybz-2p-D
-rw-r----- 1 Debian-exim Debian-exim  845 Jan 29 04:25 1rTpmX-000Ybz-2p-H
-rw-r----- 1 Debian-exim Debian-exim  313 Jan 27 00:00 1rTTJ0-0003WB-2H-D
-rw-r----- 1 Debian-exim Debian-exim  845 Jan 28 22:25 1rTTJ0-0003WB-2H-H
-rw-r----- 1 Debian-exim Debian-exim 1628 Jan 28 22:25 1rUAmO-0014ua-0N-D
-rw-r----- 1 Debian-exim Debian-exim  981 Jan 28 22:25 1rUAmO-0014ua-0N-H
-rw-r----- 1 Debian-exim Debian-exim  615 Jan 29 00:00 1rUCG5-0016Q7-3C-D
-rw-r----- 1 Debian-exim Debian-exim  845 Jan 29 00:25 1rUCG5-0016Q7-3C-H
-rw-r----- 1 Debian-exim Debian-exim 1628 Jan 29 04:25 1rUGOo-0016jp-0W-D
-rw-r----- 1 Debian-exim Debian-exim  981 Jan 29 04:25 1rUGOo-0016jp-0W-H
-rw-r----- 1 vaultwarden vaultwarden    0 Jan 29 10:18 1rULuE-001acW-0s-D
-rw-r----- 1 vaultwarden vaultwarden    0 Jan 29 10:18 1rULuw-001ahT-0J-D
-rw-r----- 1 vaultwarden vaultwarden    0 Jan 29 10:19 1rULvj-001ahd-1Q-D
-rw-r----- 1 vaultwarden vaultwarden    0 Jan 29 10:20 1rULwL-001ahg-0q-D
-rw-r----- 1 vaultwarden vaultwarden    0 Jan 29 10:22 1rULym-001aik-1F-D
-rw-r----- 1 vaultwarden vaultwarden    0 Jan 29 10:24 1rUM0C-001ais-0J-D
-rw-r----- 1 vaultwarden vaultwarden    0 Jan 29 10:28 1rUM4b-001ajq-2K-D
-rw-r----- 1 vaultwarden vaultwarden    0 Jan 29 12:31 1rUNz5-001azQ-1t-D

Why does he send emails on his own behalf and not on behalf of exim?

Emails is sent without problems via sendmail (sendmail is symlink to exim4):

echo "Subject: sendmail test" | sendmail -v user@mysite.com`

Environment:

Debian 12
Exim 4.96
Vaultwarden:
- Server Installed - 1.30.1-edf7484a
- Server Latest - 1.30.1-4b9384cb
- Web Installed - 2024.1.2
- Web Latest - 2024.1.2
- Database - SQLite: 3.44.0

*Originally created by @zevilz on 1/29/2024* I have working exim4 on server. Vaultwarden installed without Docker. - vars `USE_SENDMAIL=true` and `SMTP_FROM=user@mysite.com` defined in /etc/vaultwarden.env; - user `vaultwarden` added to group `Debian-exim` - changed rights to directory `/var/spool/exim4` from 750 to 770 (owner `Debian-exim` and group `Debian-exim`). But i have error during in "Test SMTP" section: ``` Error sending SMTP test email Sendmail client error: internal client error: 2024-01-29 12:32:11 1rUNzv-001b0k-31 Failed to create spool file /var/spool/exim4//input//1rUNzv-001b0k-31-D: Read-only file system 2024-01-29 12:32:11 1rUNzv-001b0k-31 Failed to create spool file /var/spool/exim4//input//1rUNzv-001b0k-31-D: Read-only file system 2024-01-29 12:32:11 1rUNzv-001b0k-31 Failed to create spool file /var/spool/exim4//input//1rUNzv-001b0k-31-D: Read-only file system ``` Then i add folowing lines to vaultwarden systemd service like [this](https://github.com/dani-garcia/vaultwarden/wiki/SMTP-Configuration#using-sendmail-without-docker): ``` RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 AF_LOCAL AF_NETLINK ReadWritePaths=/var/lib/vaultwarden /var/spool/exim4 ``` But have error: ``` Error sending SMTP test email Sendmail client error: internal client error: 2024-01-29 10:28:53 1rUM4b-001ajq-2K exim.c:878: chown(/var/spool/exim4//input//1rUM4b-001ajq-2K-D, 103:110) failed (Operation not permitted). Please contact the authors and refer to https://bugs.exim.org/show_bug.cgi?id=2391 2024-01-29 10:28:53 1rUM4b-001ajq-2K exim.c:878: chown(/var/spool/exim4//input//1rUM4b-001ajq-2K-D, 103:110) failed (Operation not permitted). Please contact the authors and refer to https://bugs.exim.org/show_bug.cgi?id=2391 2024-01-29 10:28:53 1rUM4b-001ajq-2K exim.c:878: chown(/var/spool/exim4//input//1rUM4b-001ajq-2K-D, 103:110) failed (Operation not permitted). Please contact the authors and refer to https://bugs.exim.org/show_bug.cgi?id=2391 ``` ``` drwxrwx--- 2 Debian-exim Debian-exim 4096 Jan 29 12:48 . drwxr-x--- 5 Debian-exim Debian-exim 4096 Jan 26 16:22 .. -rw-r----- 1 Debian-exim Debian-exim 464 Jan 28 00:00 1rTpmX-000Ybz-2p-D -rw-r----- 1 Debian-exim Debian-exim 845 Jan 29 04:25 1rTpmX-000Ybz-2p-H -rw-r----- 1 Debian-exim Debian-exim 313 Jan 27 00:00 1rTTJ0-0003WB-2H-D -rw-r----- 1 Debian-exim Debian-exim 845 Jan 28 22:25 1rTTJ0-0003WB-2H-H -rw-r----- 1 Debian-exim Debian-exim 1628 Jan 28 22:25 1rUAmO-0014ua-0N-D -rw-r----- 1 Debian-exim Debian-exim 981 Jan 28 22:25 1rUAmO-0014ua-0N-H -rw-r----- 1 Debian-exim Debian-exim 615 Jan 29 00:00 1rUCG5-0016Q7-3C-D -rw-r----- 1 Debian-exim Debian-exim 845 Jan 29 00:25 1rUCG5-0016Q7-3C-H -rw-r----- 1 Debian-exim Debian-exim 1628 Jan 29 04:25 1rUGOo-0016jp-0W-D -rw-r----- 1 Debian-exim Debian-exim 981 Jan 29 04:25 1rUGOo-0016jp-0W-H -rw-r----- 1 vaultwarden vaultwarden 0 Jan 29 10:18 1rULuE-001acW-0s-D -rw-r----- 1 vaultwarden vaultwarden 0 Jan 29 10:18 1rULuw-001ahT-0J-D -rw-r----- 1 vaultwarden vaultwarden 0 Jan 29 10:19 1rULvj-001ahd-1Q-D -rw-r----- 1 vaultwarden vaultwarden 0 Jan 29 10:20 1rULwL-001ahg-0q-D -rw-r----- 1 vaultwarden vaultwarden 0 Jan 29 10:22 1rULym-001aik-1F-D -rw-r----- 1 vaultwarden vaultwarden 0 Jan 29 10:24 1rUM0C-001ais-0J-D -rw-r----- 1 vaultwarden vaultwarden 0 Jan 29 10:28 1rUM4b-001ajq-2K-D -rw-r----- 1 vaultwarden vaultwarden 0 Jan 29 12:31 1rUNz5-001azQ-1t-D ``` Why does he send emails on his own behalf and not on behalf of exim? Emails is sent without problems via sendmail (sendmail is symlink to exim4): ``` echo "Subject: sendmail test" | sendmail -v user@mysite.com` ``` Environment: - Debian 12 - Exim 4.96 - Vaultwarden: - Server Installed - 1.30.1-edf7484a - Server Latest - 1.30.1-4b9384cb - Web Installed - 2024.1.2 - Web Latest - 2024.1.2 - Database - SQLite: 3.44.0

MrUnknownDE closed this issue

2026-04-06 01:42:57 +02:00

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Reference: github/vaultwarden#1263