[TriLUG] ProtonMail bounces

[Bill Farrow]

Hey,
When I post to the trilug general mailing list, I get the following
bounce message from ProtonMail server. Is anyone else getting this
when they post to the mailing list ?

I have confirmed that there are no protonmail email addresses
subscribed to the mailing list, but maybe someone has an aliased or
forwarded email address. If you use protonmail.sh yourself, please
check your mail settings...

Bill


---------- Forwarded message ----------
From: ProtonMail <notify at protonmail.ch>
Date: Mon, Jun 23, 2014 at 3:01 PM
Subject: Message Undeliverable: User @protonmail.ch doesn't exist!


Hi, User @protonmail.ch doesn't exist. Please check the email address
again. Thank you! ProtonMail