[kazinator]

I do most of my mailing using the RoundCube webmail interface. I made some patches to it.

In connection with the throw-away mail aliases, the issue that comes up is that when you use them for sending, rather than just receiving mails, you want that to be available in the list of sender identities in the mail client.

While it isn't automatic, I put in a hack which at least makes it easier to identify the mail identities. In RoundCube, a mail identity has an "Organization" field: what org you belong to. There is a mail header for that, IIRC.

I changed the UI so that when you look at the identities list box, the Organization field is listed in parentheses (if it is non-blank). Then I use Organization to describe the purpose of the mail alias, e.g "Foo Mailing List" or "ABC Company".

Only a small subset of my throw-away mail aliases become sender identities; I do that manually.