RE: [Mantisbt-dev] new to this list -> strange e-mail probs

[Christian H. <chr...@pd...>]

> -----Original Message-----
> From: man...@li...=20
> [mailto:man...@li...] On Behalf Of elni
> Sent: Tuesday, 9 December 2003 7:28 PM
> To: man...@li...
> Subject: [Mantisbt-dev] new to this list -> strange e-mail probs
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> Hi Listers.
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> I hope I am not asking something that has been asked a=20
> zillion times before but I couldn=B4t find anything usefull in=20
> the forum and the mailing list archive is down.
> In our Mantis Installation E-Mails are not sent occasionly.=20
> This appears to happen at random but rather rarely (rarely =3D=3D=20
> 50 Bugs/Bugnotes per Day in total with 1-2 Errors per day or so).
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> Is there a known bug in the email.api? I programmed a logging=20
> feature into the E-Mail API which informs me if anything goes=20
> wrong. In this case the SMTP Server replies with "Broken pipe=20
> ... NOQUEUE: [xxx.xxx.xxx.xxx] did not issue=20
> MAIL/EXPN/VRFY/ETRN during connection to MTA" so PHP does not=20
> issue anything usefull to the SMTP.
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> All User-Mailadresses are correct and most of the time it all=20
> works... just sometimes not.
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> Can someone help me out or give me a clue, why this happens?
> We are using Mantis on a Linux System with PHPMailer.
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That is the sort of error I see when our mail server (sendmail) rejects
a connection based on spamcop or sorbs. It replies with "abc Not
Allowed" where abc is a SMTP fail code as soon as the bad IP connects.
Most mail servers then seem to just drop the connection.

Could it be that your mail server is rejecting your Mantis server IP for
some reason every now and again? Are you using any DNS based blocking?
Try adding the mantis server IP as an allowed to relay host if it isn't
already.

Not saying that's the problem for sure and I have never had such a
problem with Mantis, but it does sound similar.

Alternatively for some reason PHPMailer is simply dropping the SMTP
connection because it doesn't like the response it got from the mail
server. The result is the error you're seeing in your mail logs.

HTH

CH