Mailman post being blocked / filtered
Hi,
I recently set up some new mailing lists in Mailman, and I've received reports that some recipients aren't receiving the message because spam filters on their end are blocking the mailman message.
How can I ensure that their spam filters aren't blocking mailman messages?
Thanks,
Ted
That's like asking how you keep criminals from breaking into other
peoples houses -- you don't.
If you control the mail servers in question, then you can ensure that
they don't reject amy of your list messages.
Otherwise, the best you can do is ensure that your reverse DNS is set
up correctly and do daily checks of all the known blacklists to see if
the IP address of your mailing list server has been listed.
-- Brad Knowles <brad@shub-Internet.org>
Sent from my iPhone
On Aug 30, 2007, at 12:42 PM, "Fitzpatrick, Ted" <Ted.Fitzpatrick@dof.ca.gov
wrote:
On Aug 30, 2007, at 12:42 PM, Fitzpatrick, Ted wrote:
How can I ensure that their spam filters aren't blocking mailman messages?
It really depends on why the mail filters are blocking the mail. Do
you see anything in your MTA logs that is useful?
You can improve your chances by doing things like making sure that
all of the DNS checks that spam filters might run against your mail
server succeed. Having an SPF record for your mailserver might
help. But these are general sorts of answers. Without details of
who's blocking and why such vague help is the best anyone can offer.
-j
That's like asking how you keep criminals from breaking into other
peoples houses -- you don't.
If you control the mail servers in question, then you can ensure that
they don't reject amy of your list messages.
Otherwise, the best you can do is ensure that your reverse DNS is set
up correctly and do daily checks of all the known blacklists to see if
the IP address of your mailing list server has been listed.
-- Brad Knowles <brad@shub-Internet.org>
Sent from my iPhone
On Aug 30, 2007, at 12:42 PM, "Fitzpatrick, Ted" <Ted.Fitzpatrick@dof.ca.gov
wrote:
On Aug 30, 2007, at 12:42 PM, Fitzpatrick, Ted wrote:
How can I ensure that their spam filters aren't blocking mailman messages?
It really depends on why the mail filters are blocking the mail. Do
you see anything in your MTA logs that is useful?
You can improve your chances by doing things like making sure that
all of the DNS checks that spam filters might run against your mail
server succeed. Having an SPF record for your mailserver might
help. But these are general sorts of answers. Without details of
who's blocking and why such vague help is the best anyone can offer.
-j
participants (3)
-
Brad Knowles -
Fitzpatrick, Ted -
Jeffrey Goldberg