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Topic: mail error 554 no reverse DNS entry

==== Provide basic information to help troubleshoot ====
- iRedMail version:  0.7.2
- Linux/BSD distribution name and version:  Freebsd 8.2
- Any related log? Log is helpful for troubleshooting.
====

When i send email to some mail account, i will receive this return mail, how can i fix this?


This is the mail system at host mail.popart.hk.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<xxx@xxxx.com>: host mail.xxxx.com[xxx.xxx.xx.xxx] said: 554
    "Refused. You have no reverse DNS entry. Contact abuse@suresupport.com for
    details." (in reply to RCPT TO command)

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Re: mail error 554 no reverse DNS entry

cwhbrian wrote:

Refused. You have no reverse DNS entry.

It's clear in returned message: This mail server enforces all sender mail servers have correct reverse DNS entry.

So please add reverse DNS if possible. If you cannot add reverse DNS entry, you'd better contact their postmaster to bypass mails from your mail server.