[Mailman-Users] Mailman and Thunderbird

[Chris Nulk]

Hello,

It could be the user needs to use the manage identities feature in 
Thunderbird.  If you have an email address A that also has an alias 
address B, when you set up the email address A account in Thunderbird, 
it will use the A email address when you reply to messages even if the 
message was sent to the B email address.  Using the Manage Identities 
feature (on the Account Settings page near the bottom), you can add the 
alias email address B.  Once done, when you reply to a message sent to 
the A address, Thunderbird will use the A address for the From: field.  
When you reply to a message sent to the B address, Thunderbird will use 
the B address for the From: field.  If you have multiple address that 
all consolidate to one address, this is a convenient way to receive mail 
and reply using the correct address for the reply.

Just a thought,
Chris

On 4/20/2016 1:14 AM, Christian F Buser via Mailman-Users wrote:
> Hi all
>
> I have no idea where this question belongs to... but there might be some knowing person out here, I hope!
>
> We switched our lists to a new provider and now are using Mailman 2.1.20 from Cpanel.
>
> A user complained that his Thunderbird mail application (on MacOS X, if this matters) does no longer treat incoming list mails properly - means, the message is treated by Thunderbird as if it was sent to his "default" mail address (we call it "A" for now) instead of the address he used to subscibe to the list (address "B").
>
> This would not be a big problem - but when he replies to a list message, the reply is sent from "A" instead of "B", resulting in an error message from Mailman...
>
> He has analysed the headers and compared with the old list setup headers. As far as he could see, the only difference was that Mailman list includes an "Envelope-To"-header with his subscription address, while the precious list version included a "Delivered-To"-header.
>
> I am not a "mail header specialist", but I would guess that these two headers are added by the receiving mail server and not by the list software. Is this assumption correct? If not, can Mailman be configured to send the "Delivered-To"-header?
>
> And if there are by chance any Thunderbird-specialists among us: what can he do to correct the situation?
>
> Thank you, Christian
>