SMTP 503 send HELO/EHLO first bounce error when sending to Postfix MTA

Can anyone help?

Trying to send email to a domain running postfix as the receiving MTA. We always receive a 503 send HELO/EHLO first bounce. The debug output shows that and EHLO has actually been sent right at the start. It appears that once the TLS transaction has started another is required. As this is when the postfix MTA begins to barf.

Is this a Domino issue (perhaps not complying to the RFC), and if so, how can I fix it. Or could this be down to a misconfiguration on the postfix mta?

Any help greatfully received

04/06/2004 15:40:48 [03C4:0015-0D10] SMTPClient: Attempting to Connect: Host mail.global.frontbridge.COM, Port 25, SSL Port 0, Connecting Domain mail2.xxxxxxxxxxxx.co.uk

04/06/2004 15:40:48 [03C4:0015-0D10] SMTPClient: Connection successful

04/06/2004 15:40:48 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 220 mail52-ash.bigfish.com ESMTP Postfix EGGS and Butter

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: CommandEHLO: EHLO mail2.xxxxxxxxxxxx.co.uk

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 250-mail52-ash.bigfish.com

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 250-PIPELINING

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 250-SIZE 150000000

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 250-VRFY

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 250-ETRN

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 250-STARTTLS

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 250 8BITMIME

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: CommandSTARTTLS: STARTTLS

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 220 Ready to start TLS

04/06/2004 15:40:49 Router: [00000015] Transferring mail to domain FABERMAUNSELL.COM (host mail.global.frontbridge.COM [206.16.192.227]) via SMTP

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: Attempting to SubmitMessage:

04/06/2004 15:40:49 [03C4:0015-0D10] SMTPClient: CommandMAIL: MAIL FROM:Keir.Snelling@xxxxxxxxxxxx.co.uk

04/06/2004 15:40:50 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 503 Error: send HELO/EHLO first

04/06/2004 15:40:50 [03C4:0015-0D10] SMTPClient: CommandRSET:

04/06/2004 15:40:50 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 250 Ok

04/06/2004 15:40:50 [03C4:0015-0D10] SMTPClient: Attempting to Disconnect:

04/06/2004 15:40:50 [03C4:0015-0D10] SMTPClient: CommandQUIT:

04/06/2004 15:40:50 [03C4:0015-0D10] SMTPClient: ReceiveResponse: 221 Bye

04/06/2004 15:40:50 [03C4:0015-0D10] SMTPClient: Connection terminated successfully

04/06/2004 15:40:50 Router: No messages transferred to FABERMAUNSELL.COM (host mail.global.frontbridge.COM) via SMTP

04/06/2004 15:40:51 Router: Transfer to server FABERMAUNSELL.COM is ready with 1 messages

04/06/2004 15:40:51 Router: Transfer thread 00000015 searching for work

04/06/2004 15:40:51 Router: Error transferring message 004EB4B1 via SMTP to mail.global.frontbridge.COM;mail.uu.net OFD97F2FB9:B90A440F ON80256EA9:004EB4B1 503 Error: send HELO/EHLO first

04/06/2004 15:40:51 [03C4:0015-0D10] SMTPClient: Attempting to Connect: Host mail.global.frontbridge.COM, Port 25, SSL Port 0, Connecting Domain mail2.xxxxxxxxxxxx.co.uk

Subject: SMTP 503 send HELO/EHLO first bounce error when sending to Postfix MTA.

Call IBM. I had the same problem and tested a hotfix which helped.RT