email filtering

Hello, I have created a mail server with mailcow and integrated with pmg i have too many problems with outgoing emails because it goes to spam. I have applied all DKIM, DMARC, SPF and also SSL and reverse dns and my emails goes again to spam. Any idea how to solve it. I will appreciate a lot...

How can i setup a reject rule if the email size is larger than X for a specific email address ? I know i can setup the global max size but want to reduce this for a specific email address. Thank you in advance.

Hallo, ein Kunde erhält Emails über unsere PMG. Für eine seiner E-Mail Adressen existiert noch keine Whitelist da noch nie irgendeine Spam-Mail für diese Adresse ankam. Jetzt müssen aber zwei Adressen in die Whtelist der E-Mail Adresse. Kann die irgendwie manuell angelegt werden?

Recently we've had issues with some spammers in our network and i am looking for solutions. Unfortunately, i haven't found much information regarding this subject, but i would like to share what i have found and to hope you can also share other solutions. We are selling both containers and...