https://first2host.co.uk/blog/install-exim-email-and-dovecot-on-ubuntu-and-debian-servers/ Options
Observe: You might have Verify the receiver’s SPAM folder, in the event that the SPF report will not be configured appropriately.Initial, remember to use a VPS with at least 2GB RAM. Running Modoboa on the 1GB RAM VPS will result in the database, SpamAssassin, or ClamAV being killed due to out-of-memory trouble. In the event you really need to ma