Urgent problem with e-mails be rejected by some remote e-mail-servers

[protractus]

When I'm sending e-mails with a php script which is initiated from a Cronjob, many remote mail servers reject this mail, complaining my server does not exist. Some servers however do exept my mail. When I send my mail directly with this php-mail-script all remote mail servers do exept the mail. Obviously I have to change a setting somewhere but can not find where.
Please help me, my project is running to its deadline.

 

[tanfwc]

make sure you have reverse dns setup

 

[protractus]

Thanks for the Clue.

make sure you have reverse dns setup

Although your answer was (to me as a not so experienced user ) rather cryptical, it did lead me to the solution. I changed the name of my server to the name of one of my registered domains and also changed the ns1 and ns2 records to match the forementioned domain. After those modifications the mails are no longer returned by the remote servers.

So thank you for the clue leading to a solution.

 

[nobaloney]

If you've changed your servername to one of the domains on your server you will have problems in the future.

Jeff

 

[protractus]

If you've changed your servername to one of the domains on your server you will have problems in the future.

Jeff

Thank you for your comment, Jeff. The mentioned domain is registered by an external party and I use their nameservers. Can I still expect problems? Is there a better way than the one I have choosen?

 

[nobaloney]

Check this knowledgebase article.

Jeff