I'm using Zimbra as Relay to Exchange in the same network.
My sent e-mails are going with this header:
Received: from mx.facilitynet.com.br (webmail.facilitynet.com.br [18.104.22.168])
These hostname differences can identify my server as spammer ?
Guys, i'm worried!
Thanks in advance,
mx.facilitynet.com.br is the hostname of relay
webmail.facilitynet.com.br is the reverse of 22.214.171.124.