Re: [courier-users] timeouts and ptr records

This is a MIME GnuPG-signed message. If you see this text, it means that
your E-mail or Usenet software does not support MIME signed messages.
The Internet standard for MIME PGP messages, RFC 2015, was published in 1996.
To open this message correctly you will need to install E-mail or Usenet
software that supports modern Internet standards.

--===============1991502131==
Content-Type: multipart/signed;
boundary="=_mimegpg-commodore.email-scan.com-15351-1187992728-0001";
micalg=pgp-sha1; protocol="application/pgp-signature"

This is a MIME GnuPG-signed message. If you see this text, it means that
your E-mail or Usenet software does not support MIME signed messages.
The Internet standard for MIME PGP messages, RFC 2015, was published in 1996.
To open this message correctly you will need to install E-mail or Usenet
software that supports modern Internet standards.

--=_mimegpg-commodore.email-scan.com-15351-1187992728-0001
Content-Type: text/plain; format=flowed; charset="US-ASCII"
Content-Disposition: inline
Content-Transfer-Encoding: 7bit

Lindsay Haisley writes:

> I'm having some problems on my courier mail server today what are
> probably dictionary spam attacks on one or more of the domain names I
> host. The network connections table fills up with dozens of partially
> completed SMTP network sessions and after a while the SMTP server just
> locks up and won't accept any more connections.
>
> To solve this I'm ramping down some of the default timeouts which can be
> spec'd in files such as esmtptimeout and others like it. The doc for
> esmtptimeout states the file contains a single text number which
> specifies the timeout in seconds unless a "m" or "h" is appended to it
> to specify minutes or hours. Does this format also apply to other
> similar files such as esmtptimeouthelo and esmtptimeoutdata?

Yes, but these specific settings are for outgoing esmtp. For incoming esmtp,
the settings are esmtptimeout and esmtptimeoutdata.

> I'd also like to have the option to drop SMTP connections outside of the
> LAN for which the IP address of the connecting host has no PTR record
> and won't reverse resolve to a name. Is there any way to do this in
> Courier?

No, not directly. The only thing you can do is to take the qmail approach,
and have couriertcpd invoke your wrapper, that checks TCPREMOTEIP and
TCPREMOTEHOST, and the invokes courieresmtpd itself.


--=_mimegpg-commodore.email-scan.com-15351-1187992728-0001
Content-Type: application/pgp-signature
Content-Transfer-Encoding: 7bit

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)

iD8DBQBGz1SYx9p3GYHlUOIRAi4jAJ0Z+mCDx8V0rzZZbgUxgA qmq/ilxQCeJhzl
HGKF9KxIzpspqR79yEvHGpk=
=cOz9
-----END PGP SIGNATURE-----

--=_mimegpg-commodore.email-scan.com-15351-1187992728-0001--


--===============1991502131==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

-------------------------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc.
Still grepping through log files to find problems? Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >> http://get.splunk.com/
--===============1991502131==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
courier-users mailing list
courier-users@lists.sourceforge.net
Unsubscribe: https://lists.sourceforge.net/lists/.../courier-users

--===============1991502131==--