GitLab

short description

As described in this topic already, the dkim_signing.conf is not created in the rspamd config folder ( /etc/rspamd/local.d/ ) when you switch from amavisd to rspam. The _rspamd user also needs to be added to the amavis group (though I didn't check if this really was missing, before simply adding it :-/)

Thus rspamd is not able to find the dkim keys and throws warnings in the log.

dkim_module_load_key_format: cannot load dkim key /var/lib/rspamd/dkim/[DOMAIN].dkim.key: cannot stat key file: '/var/lib/rspamd/dkim/[DOMAIN].dkim.key' File or folder not found

https://www.howtoforge.com/community/threads/rspamd-greylist-dkim-keys-not-loaded.82823/#post-395279

correct behaviour

DKIM files should be read from existing amavisd folder without manual intervention and configuration

environment

Server OS: centos 7 ISPConfig version: 3.1.15p3

proposed fix

• _rspamd user should be added to group amavisd
• /etc/rspamd/local.d/dkim_signing.conf should be created with the following content:

try_fallback = false;
path_map = "/etc/rspamd/local.d/dkim_domains.map";
selector_map = "/etc/rspamd/local.d/dkim_selectors.map";