sync_client starts with compression enable (-z) but as soon as it restarts, it fails to enable it. Server side at first start syncserver[87122]: accepted connection syncserver[87122]: cmdloop(): startup syncserver[87122]: login: [client-IP] cyrus PLAIN User logged in syncserver[87122]: created decompress buffer of 4102 bytes syncserver[87122]: created compress buffer of 4102 bytes Client at first restart sync_client[49902]: sync_client RESTART succeeded sync_client[49902]: COMPRESS received NO response: Compression already active: DEFLATE sync_client[49902]: Failed to enable compression, continuing uncompressed cyrus-imap is 2.4.17 ---- 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