I've tried to set this up both using the straight IMAP settings and through the "Exchange via Outlook" settings. I've also tried "auto." Nothing works. I think the problem may be that SSL is not actually supported by The Bat. The only options offered appear to be StartTLS and TLS.
Straight IMAP settings work for this account in Thunderbird. This account is at the university with which I'm affiliated.
Well, I'm getting closer. I discovered that "regular" actually means SSL in The Bat Speak. I can now connect to the IMAP server. It says at the bottom of the window: "Connected to IMAP server (outlook.office365.com)." However, it doesn't actually download any of the emails, and it periodically disconnects with a message saying that it unexpectedly disconnected. Not sure what the problem is. Any suggestions appreciated. The Bat is working fine will all of my other email accounts. -- Carl
I've been using The Bat! to connect to Exchange email since version 5.2.2. Your server names and port numbers look correct according to Office365.com online support. In The Bat! check/try the following:
Account Properties > Transport > Send Mail > Connection: STARTTLS Authentication > select "Perform SMTP Authentication; Same user/pw as for Mail Retrieval; uncheck "Require secure authentication"; uncheck "Use POP before SMTP authentication
Transport > Send Mail > Connection: Regular Authentication > Regular; all other options unchecked