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Possible Duplicate:
How to send emails and avoid them being classified as spam

I have a legitimate website that sends out emails using postfix for user signup validation. I am running a VPS with Debian on Linode.

Is there a way to somehow validate my server, so that other servers know I am not sending spam? I don't always want them ending up in the spam folder, especially on gmail.

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    could be many reasons.. badly configured vps (helo/rdns/a-record), bad/missing mail headers from your php script, blacklisted somewhere.. you might want to post more details to get better help (the headers of such a message after is has been received by gmail for example)
    – Gryphius
    Jan 8, 2013 at 6:59

1 Answer 1

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There are several issues that need to be taken in consideration while sending an email. I have seen that the most common is missing of DKIM (DomainKeys Identified Mail).

To investigate your problem I would suggest you to send an email to [email protected] . use an email address that you can receive the emails back. [email protected] will send back an debugging email where you can identify the problems that lead your emails to be marked as spam.

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