* Wietse Venema <[email protected]>: > Ralf Hildebrandt: > > Today a fellow postmaster (using Exim) called me, they were having problems > > sending > > mail to charite.de. In my log I found: > > > > Sep 3 00:31:18 mail-cbf postfix/postscreen[34943]: CONNECT from > > [31.7.179.105]:38256 to [193.175.73.208]:25 > > Sep 3 00:31:24 mail-cbf postfix/tlsproxy[39995]: CONNECT from > > [31.7.179.105]:38256 > > Sep 3 00:31:24 mail-cbf postfix/tlsproxy[39995]: Anonymous TLS connection > > established from [31.7.179.105]:38256: TLSv1.2 with cipher > > ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) > > Sep 3 00:31:24 mail-cbf postfix/postscreen[34943]: NOQUEUE: reject: RCPT > > from [31.7.179.105]:38256: 450 4.3.2 Service currently unavailable; > > from=<[email protected]>, to=<[email protected]>, proto=ESMTP, > > helo=<smtpgw03.nextwerk.de> > > Sep 3 00:31:24 mail-cbf postfix/postscreen[34943]: COMMAND PIPELINING from > > [31.7.179.105]:38256 after BDAT: Received: from [213.182.136.75] > > (helo=NWH-EX13.nwcloud.loc)\r\n\tby smtpgw03.nextwerk.de with esmtpsa ( > > > > After I disabled chunking, mail would flow again. > > Is this an Exim issue or a flaw in the newly introduced BDAT feature? > > The client is at fault. Postscreen DOES NOT announce PIPELNING support.
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