pipiriz wrote:
Hi, give me a break, the problem is solved.



I have an mx entry configured correctly.

I have a public and static ip address

I have a registered domain name.

My dns is configured correctly.

Glad to hear that your problem is solved.

Just to clarify a few general things about SMTP:

- the HELO string that the sending server is using
  is not derived from DNS, it's usually the hostname
  that is configured locally on the machine. RFC 2821 says,
  this string has to be a resolvable FQDN for a domain/host.

- a sending server does not neccessarily need a MX record,
  only correct A record and reverse DNS

- the MX record is used to announce servers that will accept
  mail for a domain, not neccessarily server that will send
  for a domain.

- if the server is both sending and receiving mails for a domain,
  then all records (MX, A, reverse DNS) are neccessary.

- if no MX record is set for a domain, mail will be sent to
  the A record of that domain. Though you should set a MX record.

Sandy
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