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Brad Fitzpatrick

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DHCP users [Jul. 17th, 2004|10:44 pm]
Brad Fitzpatrick
I followed tydel's advice and setup danga.com's postfix to not accept mail from DHCP addresses. If you try to send mail to me or anybody @danga.com now from your home DHCP server, you'll get:

554 DHCP Pool clients should use their ISP's mail server

Tailing my mail.log, it sure is rejecting a shitload of messages!

But really, you shouldn't be running an MTA on your DHCP address anyway. I know this will block some geeks who just want to run their own mail server, but they should be smarthosting it elsewhere.

Next step: ClamAV? That's the one you recommended, right scsi?

[User Picture]From: mart
2004-07-18 05:29 am (UTC)

I'm currently running my own MTA on a dialup connection! (in fact, for historical reasons my outgoing mail actually goes through two MTAs on my LAN before it hits the smarthost!)

Fortunately, I'm not stupid enough to have it try to deliver directly. However, whenever I move to a new location I always forget to change the smarthost and my mail all goes missing for at least a few days. I'd like it much better if I could just deliver directly, but that would require a much-less-broken mail system, and my mail isn't that important anyway.

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