strange mail smtp problems.
Both servers are identical and they are running with one DB server.
Most of the times (90%) when someone tries to register he gets confirmation email
And then he becomes a member.
But from time to time I get this strange message:
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This message was created automatically by mail delivery software.
A message that you sent could not be delivered to all of its recipients. The following address(es) failed:
user@bezeqint.net
The reason for failure was as follows:
451 <user@bezeqint.net>... Requested mail action not taken: mailbox unavailable
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Whem trying to send email from outlook to user@bezeqint.net I have
No problem.
The PHP servers are sending mail with a local SMTP server that relay the message for them. This is something very strange because it is happening about 10% of the times .
What can it be?????
