Clean install without `mail.` subdomain produces postconf error and makes incoming mail undeliverable · Issue #337 · modoboa/modoboa-installer · GitHub
Forbid the creation of a mail domain named like the server FQDN · Issue #5567 · NethServer/dev · GitHub
Setup Postfix Mailserver with Dovecot and MySQL on Ubuntu 18.04.4 LTS Step by Step - .matrixpost.net
POSTFIX] do not list domain mydomain.tld in BOTH mydestination and virtual_mailbox_domains · Issue #1731 · docker-mailserver/docker-mailserver · GitHub
Error unknown mail transport error - Virtualmin - Virtualmin Community
warning: do not list domain test.net in BOTH mydestination and virtual_alias_domain - SysCP - netcup Kundenforum
Monitoring Postfix and Dovecot logs in ELK – tinman alley
Fail to receive emails from GMAIL: lost connection after STARTTLS - Virtualmin - Virtualmin Community
How to Host Multiple Mail Domains in PostfixAdmin on Ubuntu
Letsencrypt cert for hostname without creating virtual server - Virtualmin - Virtualmin Community
Postfix - do not list domain example.com in BOTH mydestination and virtual_alias - Server Fault
POSTFIX] do not list domain mydomain.tld in BOTH mydestination and virtual_mailbox_domains · Issue #1731 · docker-mailserver/docker-mailserver · GitHub