I use up-to-date Debian stable Linux and the Thunderbird email reader. I am currently accessing email on Comcast using 184.108.40.206 and port 995.
For 10 days, (!) I have not been able to access email using address pop3.comcast.net. There have been discussions at Ubuntu (a variant of Debian) at URL:
Will Comcast please coordinate with Ubuntu to fix this mess.
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