North American Network Operators Group|
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RE: Abuse procedures... Reality Checks
On Wed, 11 Apr 2007, Frank Bulk wrote:
It truly is a wonder that Comcast doesn't apply DOCSIS config file filters on their consumer accounts, leaving just the IPs of their email servers open. Yes, it would take an education campaign on their part for all the consumers that do use alternate SMTP servers, but imagine how much work it would save their abuse department in the long run.
There are several large ISPs (millions of subscribers) that have done away with TCP/25 altogether. If you want to send email thru the ISPs own email system you have to use TCP/587 (SMTP AUTH).
Yes, this takes committment and resources, but it's been done successfully.
-- Mikael Abrahamsson email: swmike@xxxxxxxxx