I've added new Email Domain, generated DKIM, and setup DNS for domain name (SPF, DKIM, DMARC, MX, A records). Then i've go to Email alias, and created new for one of existing accounts. Options: Send as (Allow target to send mail using this alias as origin), Enable greylisting and Active are selected. Then when i send message using this alias (Using newest Roundcube, first added new identity, then using it to send email) messages are not signed with DKIM. I've checked rspamd and it has all configuration and data(dkim) files for domain used for this email alias. I've also created new account for that domain, and messages sent are correctly signed by DKIM. What can i do so email aliases are also signed?
This is a known issue: https://git.ispconfig.org/ispconfig/ispconfig3/-/issues/6131 You may want to test these settings and report back if that still is the solution to this issue. There is a link to another forum post in there with some additional infomartion
