i 've set up a linux + email server (centos + postfix) , but recently i sent email from my email account (using thuderbird connect to my account) to a gmail account, all of the emails are dropped into the gmail trash?
How can i fix the problem?
This question was answered by @ahrotahntee:
There's a checklist for ensuring you don't end up as spam:
- Check MX Blacklists, see if your box is present on them
- Make sure your PTR is valid
- Make sure your mailserver isn't identifying itself as 'localhost'
- Make sure that your SPF record is set and is allowing your box to send mail
- Make sure that you are not actually spamming
There's a checklist for ensuring you don't end up as spam: