Am 29.05.2015 um 22:19 schrieb Ken Murchison: > > Also, are you sure that your MTA isn't breaking up the recipients into > separate LMTP transactions? lmtpd can/will only do single instance > store for recipients that are part of the same transaction (MAIL FROM, > RCPT TO, DATA sequence). If the recipients are sent one at a time with > duplicate DATA commands, there are treated as distinct messages. That is the problem, postfix default local transport does only one at a time, that breaks single instance storage. We had to redefine it to: local_transport = lmtp:unix:/lmtp/lmtp Please read about the consequences in postconf manual. Hope that helps -- Michael ---- 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