Topic Thread

Remove and Add new DKIM Signature to outgoing email on FortiMail appliance

  • 1.  Remove and Add new DKIM Signature to outgoing email on FortiMail appliance

    Posted 02-13-2018 15:38

    Hello, is there a way to both strip the dkim signature from an incoming O365 message AND apply a new dkim signature on the outgoing on a Fortimail appliance? My company is in the middle of a domain migration, combining two domains to one, and there is a strong desire to have outbound email as the new company now. I found the "Address Map" feature on the FortiMail appliance very useful to rewrite the outgoing email from "current" domain to "new" but dkim checks fail since it was sent from O365 as the "current" domain. I can have the FortiMail appliance strip the DKIM signature, but it will simply not apply the new one. I went thru the instructions step by step, but the signature simply does not apply. Any information is greatly appreciated