How to avoid outgoing emails to be flagged as spam by google?

Question

Possible Duplicate:
Best Practices for preventing you from looking like a spammer

I use Exim4 as MTA on Ubuntu server. The problem is that all outgoing emails are being flagged as spam by google mail. It is very annoying. I appreciate your hints and possible solutions.

Answer 1

One thing to look at is there being a valid reverse name for your mail server. If your mail server is "mail.mycompany.com" yet when resolved, has a different name, some servers, like mine, will reject your email. Another thing to verify is your mail server having an SPF record. Little more information may help resolve this.

Answer 2

there are too many factors. Your server have been send email out too many people and someone probably report your email as a spam email. I would rename the send email to something and send the email on the different email server with a different ip address.