[issue2551186] Python versions >= 3.3 no longer use socker.sslerror

New submission from Andrew:

The mailgw.py file attempts to catch the socket.sslerror, which is no longer present in 
python 3.3 and on:

https://docs.python.org/3/library/ssl.html#ssl.SSLError

As a result attempting to use mailgw.py will throw an exception:

AttributeError: module 'socket' has no attribute 'sslerror'. 

The attached simple patch fixes the issue for python3. However, this is going to end up 
skipping the error for python2.

NOTE: I had some communication around this issue in August of 2021 via email but sadly 
dropped the ball.

----------
components: Mail interface
files: mailgw.py.patch
keywords: patch
messages: 7433
nosy: kragacles
severity: normal
status: new
title: Python versions >= 3.3 no longer use socker.sslerror
type: crash
versions: devel

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