Subj : POP server down
To   : Tommi Koivula
From : Michiel van der Vlist
Date : Sun Jan 17 2016 14:32:03

Hello Tommi,

On Sunday January 17 2016 14:36, you wrote to me:

 MV>> You use the tunnel as your main connection and native as the
 MV>> backup?

 MV>> Why?

 TK> My native ipv6 from the isp Elisa is mobile 4G and the ipv6 addresses
 TK> will change every time i disconnect and reconnect.

Ah! That indeed is a good reason to use it only as a backup :-(

 TK> They also block some ports, like 25.

Many do. My ISP blocks it for outgoing to other than to their own SMTRP server, but they allow their customers to use their SMTP server as a relay, and so one can run one's own mail server.

AFAIK, they do not deep inspect 6in4 traffic, so one could still do outgoing IPv6 SMTP via tunnels, if the other end allows it.


Cheers, Michiel

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