[MlMt] Setting email alias as default email address

[Jon Sutton]

Bill-
That was exactly what I needed.  Thanks for your help.
-Jon

On Thu, 20 Nov 2025 17:23:20 -0500 Bill Cole 
<mmlist-20120120 at billmail.scconsult.com> wrote:

> On 2025-11-20 at 15:11:47 UTC-0500 (Thu, 20 Nov 2025 15:11:47 -0500)
> Jon Sutton via mailmate <mailmate at lists.freron.com>
> is rumored to have said:
>
>> Many email service providers support multiple aliases on a single 
>> account.  Mailmate supports this in the account settings “*Email 
>> address(es):*” field.  However in the *Composer* pane of the 
>> general settings, you can select a default email account but not a 
>> specific alias.
>
> MM uses the first address listed in the account settings address list 
> as the default for that account.
>
> When replying to a message, MM examines the original message to see 
> what address it was sent to and uses that as the From on replies.
>
>> Is there a way to specify one of the aliases associated with this 
>> account as the default From address for new messages?
>
> List it first in the Addresses field of the Account Settings. You can 
> actually put any address there and MM will use it, but I wouldn't rely 
> on messages actually being accepted if you use an address that does 
> not belong to you.
>
> For example, I have an address @apache.org because I'm a Committer, 
> but that's strictly a forwarder that actually delivers to an ugly 
> alias for my main account  into a particular folder via a server-side 
> filter, just like YOUR message  If I respond to that message, it uses 
> the "To" in the message (OR X-Original-To, if it exists...) and tries 
> to match it to an account. If it sees my ASF address, it uses that as 
> the From on a reply and uses a *distinct account* for sending the 
> message, using an ASF mail server.
>
> In short: MM has no real concept of "real" vs. "alias" addresses. Its 
> choice of a From address (and a sending account) is based on what you 
> tell it is your address and what it sees in your mail.
>
> -- 
>  Bill Cole
>  bill at scconsult.com or billcole at apache.org
>  (AKA @grumpybozo at toad.social and many *@billmail.scconsult.com 
> addresses)
>  Not Currently Available For Hire
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