[qmailtoaster] AOL and smptroutes

[Jake Vickers]

For those that have not noticed, AOL has been rotating the IP addresses for their MX records on a daily basis. I think this was due to a comment made on the Spamassassin mailing list a week or so ago about doing something similar (and creating false MX entries that point nowhere) to help fight spam. Anyway, I use smtproutes to get mail to AOL (they always fail CNAME lookups here), so you can see where this would get broken in a hurry. I whipped up a script that will do a MX dig of the ISP (it's a variable so you can use it for any ISP, not just AOL), and then replace the old entry in /var/qmail/control/smtproutes with the new MX lookup. It creates a backup of the smtproutes file in the $TMPDIR (/tmp by default) in case you need to roll it back. I hope to make this a little more robust in the future, such as being able to handle multiple ISPs and such. If you see anything wrong with the script, please email me off-list and let me know.

It's been tested on a Cent 4.5 machine.

As always, the file is available from my site, under the Downloads section (http://v2gnu.com)

smime.p7s
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