This is kind of similar to #3174, but does not use multiple instances of Claws Mail and happens when responding to a mail and is kind of annoying. Steps to reproduce: Two different Accounts configured in the same Claws-Mail instance. (For me its the same IDAP Server for both, but i don't know if that is part of the problem) Send the same E-Mail to both accounts. Try to reply to the E-Mail from both accounts. Result: You cannot select the sender of the mail by deciding in which inbox you click the "Reply" button. Claws-Mail always chooses the second account as the sender of the response, even though i pressed the Reply Button from the Inbox of the first account. Expected Behavior: If I click Reply in the inbox of account A, account A should be the sender of the mail I am composing. If I click Reply in the inbox of account B, account B should be the default selected sender of the mail. So it should behave exactly the same as it does when a mail is not present in multiple accounts.
You talk of 'inbox of account A' and 'inbox of account B'. Are these MH mailboxes? Why not use the Folder Properties to set the account?
They are IMAP accounts. For mails that are not send to both accounts at once the function to select the "From"-Account works exactly like it is supposed to, so i didn't expect any folder properties that can improve upon this. But i was wrong. Setting the Compose->"Default account" property on the Inbox-Folder of both accounts did indeed solve the problem. I did really expect this to be the default, though.