Outgoing SMTP Servers

Scott Howard scott at doc.net.au
Thu Oct 27 02:57:23 UTC 2011

On Tue, Oct 25, 2011 at 2:51 AM, Aftab Siddiqui <aftab.siddiqui at gmail.com>wrote:

> Blocking port/25 is a common practice (!= best practice) for home
> users/consumers because it makes life a bit simpler in educating the end
> user.

MAAWG have considered this a best practice for residential/dynamic IPs since
2005 - http://www.uceprotect.net/downloads/MAAWGPort25English.pdf

The FTC and numerous other government agreed the same year -
http://www.ftc.gov/bcp/edu/microsites/spam/zombie/letter_english.pdf (The
URL in the pdf no longer works - it's not

Anyone not yet past the denial stage on this one needs to get themselves a
copy of RFC 5068 and start reading.


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