[Chapter-delegates] Blocking port tcp/25 outgoing

[Marcin Cieslak]

Telekomunikacja Polska - the largest broadband Internet access provider in Poland
(and the incumbent telecom operator) plans to block traffic outgoing on the tcp/25
port effective December, 1st 2009. This port is used for the Simple Mail Transfer
Protocol (SMTP) traffic.

Mail submission (tcp/587) from RFC 4009  and SMTP over SSL (tcp/465) are going
to be the recommended ways for their customers to send email using third-party
SMTP relays.

This change will affect their home (consumer) DSL access customer, 
This will affect I think over 2 million customers.

1. How many of providers in your region implement such a measure?

2. If so, do customers have an option to lift the block on request for their 
access line? (Assuming customer authentication via MAC-address or PPP
and variants is used).

3. How does that change influcence customers? Does that change limit
amount of spam being sent, and if so, to what extent?

4. To all: Do you think local ISOC chapter should respond to blocking
of SMTP traffic? If yes, how?

--Marcin