After the introduction of mattermost there are always people lagging behind and sticking to their beloved mailing lists 
Unfortunately you can't always just don't care. The best would be if these people would get the messages posted in mattermost into the Email.
There seem to be alot of possibilities with outgoing webhooks, but setting up a whole web-to -email gateway for a couple of jerks wishing to stay in stone age of communication is just too much. 
Any ideas?
I came up with the idea to set up a specific user called "mailer" which email points to the distribution list email. If someone mentions @mailer in his message then, the message gets distributed to the people still on the mailing list. Unfortunately this is still too wacky for production because:
- The subject line is messy. Is there any way to have at least something like "Message from Mattermost" maybe even mention the user who has written the message?
- The Mail body is messy as well. Is there any possibility to put the message first and the rest of the Mattermost mentions and channel links somewhere on the bottom?
- All sort of notificationswill go through. Is there a possibility to have Email only on mentions?