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Weird telnet delay

I have mail on three different POP servers (let's call them P1,P2 and P3).

Mac Mail on my MacBook Air can access P1 & P2, but recently stopped working with P3 (about three weeks ago).

The Mail settings are all correct (i've checked many, many times).


To diagnose, I've tried to use telnet under Terminal.

I can connect immediately to P1 & P2, but P3 waits for exactly 60 seconds before I get the "OK ready" response from the server. I assume that Mail fails to connect because its timeout is less than 60 seconds?


I repeated the telnet test from my iMac on the same WiFi network and it works immediately with all three POP servers.

Also, Mac Mail works perfectly on the iMac.


I've contacted tech support at the relevant ISP, but all they could suggest was the usual - reboot the modem and the MacBook.


Does anybody out there have the remotest idea what could be causing this strange behaviour?


Barry,

Australia

iMac, OS X Mountain Lion (10.8.5)

Posted on Oct 18, 2013 4:29 PM

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Weird telnet delay

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