[PLUG] Protonmail vs PLUG - The battle rages on

[Jason Barbier]

I can tell you they are right and wrong, I get protonmail replies from the list but I had to go monkey around with my spam settings to ensure they land in my inbox. What they do is have all their spam controls like dmarc and spf set to hard fail, when your service evaluates the message PLUGs mail servers are not on the allow list, your servers spam filters do what they do which for a lot of people its stuff it in the big dev null in the sky. Now the part where protonmail is wrong is they can't force my servers to do anything what they do with the info protonmail gives me is still in my control.
There is little that can be done to fix this, the only real way to fix it is changing the mailman behavior to send from an address on the plug domain which has its own problems. The only reason that is the only real way is regardless of protonmail or any other service changing parts of thier spam controls mailman is still spoofing addresses and will still fail dkim and other more advanced controls, and it would honestly not be a workable solution to try and allow list serves to send as your domain. This breaks a lot of the behavior of things like listservs but spammers and advertisers once again ruin something for everyone 

On 18 at 08:01 someone claiming to be Ben Koenig said:
> Hi all,
>
> As I've mentioned recently, I've been having trouble receiving emails 
> from this list when the sender is using a protonmail.com account. Since 
> this appears to be protonmail specific, I contacted their support team, 
> provided an example message (with timestamp) and confirmed that this 
> was through a mailing list (running Mailman). Here is the response I 
> got:
>
> """
> Hello,
>
> Thanks for the feedback.
>
> Please note that sending a message on a behalf of Proton Mail by using 
> a third-party service is not allowed, and that's the reason why you 
> didn't receive the message.
>
> We set our system that way in order to protect Proton Mail’s IP 
> reputation and ensure all messages sent from Proton Mail are delivered 
> to your recipient’s inbox — not their spam folder
>
> We apologize for not being able to assist you on this matter.
>
> Kind regards,
>
> Filip F.
> Customer Support
> Proton Mail
>
> """
>
> Obviously I'm not pleased with that response. BUT I faintly recall 
> someone else on this list using this particular service once replied to 
> one of my emails, but of course I never saw it, just another user's 
> reply.
>
> For any protonmail users on PLUG that do receive this message, can you 
> please reply to verify that you did? According to their support team 
> under no circumstances should you be seeing this message.
>
> Given that I likely won't see your response, also send a different 
> email (+different subject) to me directly so that I can compare.
> -Ben

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