With ClamAV disabled, ***UNCHECKED*** is added to all titles

[jgillich]

Apparently 512MB RAM aren't enough, so I disabled ClamAV to save memory by setting DISABLE_CLAMAV=1. Now ***UNCHECKED*** is added to all titles. It would be nice if this behavior could be turned off automatically; from what I've found this is probably done by amavis.

[tomav]

@jgillich would you like to contribute with a patch for this enhancement?

[jgillich]

Yes, but I'm not sure when I'll get to it.

[marcinkoziej]

It seems that clamav-scan is being run nevertheless. I'm not sure about the solution, but what I did is I've added config/amavis.cf file with:

use strict;
@bypass_virus_checks_maps = ();
$undecipherable_subject_tag = undef;
1;

This is copied to /etc/amavis/conf.d/50-user by container start script.

[dbellavista]

mail     | Dec 25 00:21:35 mail amavis[955]: (00955-01) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:21:36 mail amavis[955]: (00955-01) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:21:36 mail amavis[955]: (00955-01) (!)ClamAV-clamd: All attempts (1) failed connecting to /var/run/clamav/clamd.ctl, retrying (2)
mail     | Dec 25 00:21:37 mail amavis[956]: (00956-01) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:21:38 mail amavis[956]: (00956-01) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:21:38 mail amavis[956]: (00956-01) (!)ClamAV-clamd: All attempts (1) failed connecting to /var/run/clamav/clamd.ctl, retrying (2)
mail     | Dec 25 00:21:42 mail amavis[955]: (00955-01) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:21:42 mail amavis[955]: (00955-01) (!)ClamAV-clamd av-scanner FAILED: run_av error: Too many retries to talk to /var/run/clamav/clamd.ctl (All attempts (1) failed connecting to /var/run/clamav/clamd.ctl) at (eval 136) line 603.\n
mail     | Dec 25 00:21:44 mail amavis[956]: (00956-01) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:21:44 mail amavis[956]: (00956-01) (!)ClamAV-clamd av-scanner FAILED: run_av error: Too many retries to talk to /var/run/clamav/clamd.ctl (All attempts (1) failed connecting to /var/run/clamav/clamd.ctl) at (eval 136) line 603.\n
mail     | Dec 25 00:21:52 mail amavis[955]: (00955-02) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:21:53 mail amavis[955]: (00955-02) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:21:53 mail amavis[955]: (00955-02) (!)ClamAV-clamd: All attempts (1) failed connecting to /var/run/clamav/clamd.ctl, retrying (2)
mail     | Dec 25 00:21:59 mail amavis[955]: (00955-02) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:21:59 mail amavis[955]: (00955-02) (!)ClamAV-clamd av-scanner FAILED: run_av error: Too many retries to talk to /var/run/clamav/clamd.ctl (All attempts (1) failed connecting to /var/run/clamav/clamd.ctl) at (eval 136) line 603.\n
mail     | Dec 25 00:22:09 mail amavis[956]: (00956-02) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:22:10 mail amavis[956]: (00956-02) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:22:10 mail amavis[956]: (00956-02) (!)ClamAV-clamd: All attempts (1) failed connecting to /var/run/clamav/clamd.ctl, retrying (2)
mail     | Dec 25 00:22:16 mail amavis[956]: (00956-02) (!)connect to /var/run/clamav/clamd.ctl failed, attempt #1: Can't connect to UNIX socket /var/run/clamav/clamd.ctl: No such file or directory
mail     | Dec 25 00:22:16 mail amavis[956]: (00956-02) (!)ClamAV-clamd av-scanner FAILED: run_av error: Too many retries to talk to /var/run/clamav/clamd.ctl (All attempts (1) failed connecting to /var/run/clamav/clamd.ctl) at (eval 136) line 603.\n

This log is from 2-3 SMTP connections trying to send email with attachments. I used the environment variable DISABLE_CLAMAV=1 however amavis still tries to perform the scan.

As you can see, the are at least 30 seconds between the initial request and the "giving up".

[tomav]

I'm gonna push a fix. You'll let me know.

[tomav]

Implemented @lolownia suggestion.

[tomav]

Image is being built.

[tomav]

You can now docker pull tvial/docker-mailserver:v2.
There are 2 things to check:

• no more presence of (!)connect to /var/run/clamav/clamd.ctl failed in the logs (tested)
• UNCHECKED should disappear (not fully tested)