[MlMt] Remove and restore Fastmail IMAP account in MM

[Bill Cole]

On 2025-02-24 at 21:05:00 UTC-0500 (Mon, 24 Feb 2025 18:05:00 -0800)
Andrew Buc <mailmate at lists.freron.com>
is rumored to have said:

> I see that one of the right-click options on the account is "Remove," 
> which seems straightforward. For when I add the account back, I have a 
> couple of questions:
>
> In a spirit of "better stupid questions than stupid mistakes," does 
> the dialog above get the 16-character app p/w, or the p/w I use when 
> logging into the Fastmail web interface?

The app password.

The point of "app passwords" is to isolate the authentication of exactly 
one client application with its own unique password that nothing else 
can use. Depending on the service provider, you may even be unable to 
use the same app password on 2 different achines with the same client 
software or in 2 different clients on the same machine.

> I use server-side rules (and now I'm glad I do) to sort mail into 
> various mailboxes, so those rules won't go away. Will the smart 
> mailboxes, of which I have quite a few, go away? I hope not.

If I am interpreting the cruft in my own  ~/Library/Application 
Support/MailMate/Mailboxes.plist correctly, the Smart mailboxes which 
are children of "Mailboxes" retain references to deleted accounts as 
sources and in rules un til the Smart mailbox is re-edited, so if you 
recreate the account with identical user & server names, those should 
survive. Smart mailboxes which are children of the account being deleted 
DO get deleted with the account.

I hope you have not yet deleted the account, as it is almost certainly 
possible to fix the login configuration with the right details. Things 
that can matter include how you've configured encryption (mislabeled in 
MM as SSL) and whether you've included your domain name in the username 
for authentication or not. I can't tell you what the correct settings 
are, but your working Postbox settings should provide strong clues.


-- 
  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