Zimbra masquerading as other domains
I work for a legit marketing company. We send out email of be-halve of our clients (so it appears the mail came from their servers and email system).
We are using sendmail for this at the moment, but I would like to migrate to Zimbra if possible?
The requirements are as follows:
we send out email as user@localzimbraserver via zimbra and goes to the email@example.com but appearing as coming from firstname.lastname@example.org with a return path to the zimbra server in case the mail bounces (email address is fake or no longer exists)
Is this possible?
If unclear something like sendgrid?