Hello, I used to have a old SMTP server, with after-queue content filtering. My new setup involve a before-queue content filter (amavisd). Unfortunately, Amavisd is a little bit strict about the smtp session: it bounces email sent using "MAIL FROM: address" instead of "MAIL FROM:<address>". It's ok for my all my clients but one. It's an appliance, so I cannot change anything about its way to handle SMTP protocol.
Here is a debug session: smtp/smtpd[86566]: connect from extron.domain.tld[192.168.42.241] smtp/smtpd[86566]: match_hostaddr: 192.168.42.241 ~? 127.0.0.1 smtp/smtpd[86566]: match_hostaddr: 192.168.42.241 ~? 192.168.0.0/16 smtp/smtpd[86566]: > extron.domain.tld[192.168.42.241]: 220 smtp.domain.tld ESMTP smtp/smtpd[86566]: < extron.domain.tld[192.168.42.241]: HELO extron.domain.tld smtp/smtpd[86566]: > extron.domain.tld[192.168.42.241]: 250 smtp.domain.tld smtp/smtpd[86566]: < extron.domain.tld[192.168.42.241]: MAIL FROM: applia...@domain.tld smtp/smtpd[86566]: > extron.domain.tld[192.168.42.241]: 250 2.1.0 Ok smtp/smtpd[86566]: < extron.domain.tld[192.168.42.241]: RCPT TO: techserv...@domain.tld smtp/smtpd[86566]: check_namadr_access: name extron.domain.tld addr 192.168.42.241 smtp/smtpd[86566]: check_addr_access: 192.168.42.241 smtp/smtpd[86566]: permit_mynetworks: extron.domain.tld 192.168.42.241 smtp/smtpd[86566]: match_hostaddr: 192.168.42.241 ~? 127.0.0.1 smtp/smtpd[86566]: match_hostaddr: 192.168.42.241 ~? 192.168.0.0/16 smtp/smtpd[86566]: > 127.0.0.1:10024: XFORWARD NAME=extron.domain.tld ADDR=192.168.42.241 PORT=2488 HELO=extron.domain.tld PROTO=SMTP SOURCE=LOCAL smtp/smtpd[86566]: > extron.domain.tld[192.168.42.241]: 501 5.5.2 Syntax: MAIL FROM:<address> smtp/smtpd[86566]: match_hostaddr: 192.168.42.241 ~? 127.0.0.1 smtp/smtpd[86566]: match_hostaddr: 192.168.42.241 ~? 192.168.0.0/16 smtp/smtpd[86566]: lost connection after RCPT from extron.domain.tld[192.168.42.241] smtp/smtpd[86566]: disconnect from extron.domain.tld[192.168.42.241] I've read the Postfix documentation, especially this part: > The content filter should accept the same MAIL FROM and RCPT TO command > syntax as the before-filter Postfix SMTP server, and should forward the > commands without modification to the after-filter SMTP server. If the content > filter or after-filter SMTP server does not support all the ESMTP features > that the before-filter Postfix SMTP server supports, then the missing > features must be turned off in the before-filter Postfix SMTP server with the > smtpd_discard_ehlo_keywords parameter. I know the problem is on Amavisd's side. But I'm sure others have been confronted to this issue. Any idea other than patching amavisd? thanks, Patrick PRONIEWSKI -- Administrateur Système - SENTIER - Université Lumière Lyon 2
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