I need assistance with an error I'm getting via postfix on CentOS.
I'm receiving the following error when trying to send a test email from a server in our DMZ to any email address outside our internal network:
Feb 24 13:55:09 media postfix/smtpd[8926]: 2F06E3202D0: client=localhost.localdomain[127.0.0.1] Feb 24 13:55:14 media postfix/cleanup[8929]: 2F06E3202D0: message-id= Feb 24 13:55:14 media postfix/qmgr[8745]: 2F06E3202D0: from=, size=375, nrcpt=1 (queue active) Feb 24 13:55:14 media postfix/smtp[8930]: 2F06E3202D0: lost connection with gmail-smtp-in.l.google.com[74.125.93.26] while receiving the initial server greeting Feb 24 13:55:14 media postfix/smtp[8930]: 2F06E3202D0: lost connection with alt1.gmail-smtp-in.l.google.com[209.85.229.26] while receiving the initial server greeting Feb 24 13:55:14 media postfix/smtp[8930]: 2F06E3202D0: lost connection with alt2.gmail-smtp-in.l.google.com[74.125.79.26] while receiving the initial server greeting Feb 24 13:55:14 media postfix/smtp[8930]: 2F06E3202D0: lost connection with alt3.gmail-smtp-in.l.google.com[173.194.69.26] while receiving the initial server greeting Feb 24 13:55:14 media postfix/smtp[8930]: 2F06E3202D0: to=, relay=alt4.gmail-smtp-in.l.google.com[209.85.173.27]:25, delay=10, delays=10/0/0.02/0, dsn=4.4.2, status=deferred (lost connection with alt4.gmail-smtp-in.l.google.com[209.85.173.27] while receiving the initial server greeting)
This is my first time working with postfix so I'm not sure what the problem is.
Any ideas?
Thanks in advance!
Edit: The server has an SPF setup for it and the domain is not blacklisted.