"Send and archive" when replying to sent email

[mattfbacon]

Is it intentional that the sent email is moved to the Archive, or that this button is displayed at all? I find the behaviour a bit strange, that this is not special-cased, because replying to an own email is special-cased to swap the sender and receiver.

[mjl-]

The behaviour is intentional, but perhaps the action shouldn't be possible when the Sent mailbox is open. I think I've thought so far that the functionality is harmless because you can just choose not to use it when forwarding/replying to a message in the Sent mailbox.

So the way the "archiving" works: Only the messages in the thread (that is being archived after sending) that are in the same mailbox as is currently open (from where you're replying) will be moved to the archive mailbox. If you're replying to a message that is stored in the Sent mailbox, it matters where you're viewing it. If you're viewing it the inbox (or trash, or any other place), it isn't being moved (because it's not in the same mailbox as currently open). If you're viewing it in the Sent mailbox, it will be moved (since it's stored in Sent and you're viewing it in Sent).

Having the "send & archive" available in the Sent folder isn't very useful. At least I don't see why someone would want to use it. So I'm fine with not having it there.