Re: [Mailman-Users] Munge-from "From:" addresses and address auto-complete

[Mark Sapiro]

On 11/14/19 3:36 PM, Dan Halbert wrote:
> 
> Is there some configuration I can set up that can alter these "From:"
> addresses to avoid putting the person's name first, but still including
> it? Or is there some other way to ameliorate this problem? We could
> choose something other than "Munge-from", but we do not want to lose the
> identity of the sender, which is worse.
> 
> We are using a third-party provider and have no direct control over the
> formatting of the rewritten "From:" header; I would change the Mailman
> code directly if I could.


Changing the format of the munged From: header would require changes to
the code in Mailman/Handlers/CookHeaders.py. There's no way to do this
with list configuration settings.

The only other thing you could do is not apply DMARC mitigations to the
From: header and set your list to not make DKIM breaking transformations
to the message. See item 2) at .

-- 
Mark Sapiro The highway is for gamblers,
San Francisco Bay Area, Californiabetter use your sense - B. Dylan
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[Mailman-Users] Munge-from "From:" addresses and address auto-complete

[Dan Halbert]

We have a number of Mailman V2 lists with "Munge-from" turned on, due to 
DMARC issues at receiving mail systems. This rewrites the From: 
addresses to something like:


    From: Dan Halbert via SOME-LIST 

The problem is some email clients (I'm not sure which ones) pick up 
these "From:" addresses and add them automatically to the user's address 
book. Then, when the user wants to send a private (not list) message to 
some person on the mailing list, they start typing the person's name, 
and the email client may autocomplete with the list address, not the 
person's address. If the sender doesn't check the address carefully, 
they may send to the list inadvertently. This has led to several mildly 
embarrassing private messages being sent to a list.


Is there some configuration I can set up that can alter these "From:" 
addresses to avoid putting the person's name first, but still including 
it? Or is there some other way to ameliorate this problem? We could 
choose something other than "Munge-from", but we do not want to lose the 
identity of the sender, which is worse.


We are using a third-party provider and have no direct control over the 
formatting of the rewritten "From:" header; I would change the Mailman 
code directly if I could.


Thanks,
Dan
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