All, After trying for a couple of days I have come to the conclusion that the Office 365 IMAP import tool uses the LOGIN authentication mech while Cyrus requires PLAIN or stronger for proxying to work. Even when only announcing AUTH=PLAIN in our server capabilities, Microsoft executes LOGIN ... ... (violation of RFC3501 section 6.1.1 ? dunno whether I am reading that correctly) Is my conclusion correct ? Any hacks or workarounds ? Thx, Eric Luyten, Computing Centre VUB/ULB. ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus