FW: NOTICE: mail delivery status.

[Alexander Erameh]

Hi,
Why are mails to this particular address being rejected please?

-----Original Message-----
From: mailer-daemon@...
[mailto:mailer-daemon@...]
Sent: Monday, October 26, 2009 10:07 AM
To: postmaster@...
Subject: NOTICE: mail delivery status.


This is a delivery status notification from mailserver, running the Courier
mail server, version 0.60.0.

The original message was received on Mon, 26 Oct 2009 10:06:14 +0100 from
localhost (localhost [127.0.0.1])

---------------------------------------------------------------------------

                           UNDELIVERABLE MAIL

Your message to the following recipients cannot be delivered:

<andrea@...>:
    pcdata.it [93.95.216.141]:
>>> MAIL FROM:<postmaster@...> SIZE=15500
<<< 550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1)

---------------------------------------------------------------------------

If your message was also sent to additional recipients, their delivery
status is not included in this report.  You may or may not receive other
delivery status notifications for additional recipients.

The original message follows as a separate attachment.



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[Milan Obuch-14]

On Monday 26 October 2009 11:11:19 Alexander Erameh wrote:

> Hi,
> Why are mails to this particular address being rejected please?
>
> -----Original Message-----
> From: mailer-daemon@...
> [mailto:mailer-daemon@...]
> Sent: Monday, October 26, 2009 10:07 AM
> To: postmaster@...
> Subject: NOTICE: mail delivery status.
>
>
> This is a delivery status notification from mailserver, running the Courier
> mail server, version 0.60.0.
>

This means message is generated by your server...

> The original message was received on Mon, 26 Oct 2009 10:06:14 +0100 from
> localhost (localhost [127.0.0.1])
>

... originated by local mail program or being locally redirected via lais or
some other similar means...

> ---------------------------------------------------------------------------
>
>                            UNDELIVERABLE MAIL
>
> Your message to the following recipients cannot be delivered:
>
> <andrea@...>:
>
>     pcdata.it [93.95.216.141]:
> >>> MAIL FROM:<postmaster@...> SIZE=15500
>
> <<< 550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1)
>

... and server to receive this message rejected it. Error message says name
used in HELO (look for SMTP details in RFC mentioned or elsewhere) is not
valid. As there is no IP mentioned here where your server runs, I can not
tell more, but maybe you have no valid name in courier's config 'me' file or
the error is in how your zone is set in DNS.

> ---------------------------------------------------------------------------
>
> If your message was also sent to additional recipients, their delivery
> status is not included in this report.  You may or may not receive other
> delivery status notifications for additional recipients.
>
> The original message follows as a separate attachment.
>

Regards,
Milan

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[Sam Varshavchik]

Alexander Erameh writes:

> Hi,
> Why are mails to this particular address being rejected please?

Ask the recipient's mail server's administrator, who configured that mail
server.

It looks like it doesn't like your HELO name; however since you did not show
what you configured your server to use, the only advice possible is to
contact the recipient's mail server's administrator.

Presuming that you configured your server's HELO name as
"mailserver.socotherm.com", no such hostname exists in DNS and that's
probably why the recipient's mail server is refusing to accept this message.

>
> -----Original Message-----
> From: mailer-daemon@...
> [mailto:mailer-daemon@...]
> Sent: Monday, October 26, 2009 10:07 AM
> To: postmaster@...
> Subject: NOTICE: mail delivery status.
>
>
> This is a delivery status notification from mailserver, running the Courier
> mail server, version 0.60.0.
>
> The original message was received on Mon, 26 Oct 2009 10:06:14 +0100 from
> localhost (localhost [127.0.0.1])
>
> ---------------------------------------------------------------------------
>
>                            UNDELIVERABLE MAIL
>
> Your message to the following recipients cannot be delivered:
>
> <andrea@...>:
>     pcdata.it [93.95.216.141]:
>>>> MAIL FROM:<postmaster@...> SIZE=15500
> <<< 550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1)
>
> ---------------------------------------------------------------------------
>
> If your message was also sent to additional recipients, their delivery
> status is not included in this report.  You may or may not receive other
> delivery status notifications for additional recipients.
>
> The original message follows as a separate attachment.
>
>
>
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart your
> developing skills, take BlackBerry mobile applications to market and stay
> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
> http://p.sf.net/sfu/devconference
> _______________________________________________
> courier-users mailing list
> courier-users@...
> Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users

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[Joseph C. Lininger]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

> pcdata.it [93.95.216.141]:
> MAIL FROM:
> <postmaster@...>
>  SIZE=15500
> <<< 550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1)

Looks like the receiving system (93.95.216.141) doesn't like what your
server is providing as the parameter to the helo/ehlo verb. To avoid
problems here, make sure the following are true.

1. The parameter is a valid host name. The default for courier is to use
the value of the "me" setting. You can edit that by looking in your
courier configuration directory, /etc/courier on my system but maybe
different on your's. You'll need to place the fqdn of your machine into
/etc/courier/me, and depending on your system you may also need to place
a host name in /etc/courier/esmtphelo. This will depend on exactly how
your reverse dns works and how you have your server configured.

2. Make sure that the parameter being provided in the helo/ehlo verb is
the same as what a reverse dns look up on the address of the host would
resolve to. Not all machines check this, but they're starting to do it
more often and you can have mail rejected if you don't meet this condition.

It looks like as long as you meet condition 1, that is, a valid host
name is provided in the helo/ehlo verb, the server you're trying to
deliver mail to will accept your mail. But meet 1 and 2 if at all
possible. You'll avoid future problems that way.
- --
Those of you who think they know everything are very annoying to those
of us who actually do.
Joseph C. Lininger, <jbahm@...>
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------------------------------------------------------------------------------
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