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postfix (2.4-20070123-1) experimental; urgency=low
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As of this version, Debian's postfix defaults to matching upstream
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behavior (introduced in postfix 2.0) in handling excessively long lines
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The Postfix SMTP client now breaks message header or body lines that
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are longer than $smtp_line_length_limit characters (default: 990).
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Earlier Postfix versions broke lines at $line_length_limit characters
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(default: 2048). Postfix versions before 20010611 did not break long
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lines at all. Reportedly, some mail servers refuse to receive mail
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with lines that exceed the 1000 character limit that is specified by
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Those wishing the old behavior of never breaking lines should set
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smtp_line_length_limit=0 in /etc/postfix/main.cf, and be aware that they
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are not standard conformant.
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-- LaMont Jones <lamont@debian.org> Wed, 24 Jan 2007 07:28:15 -0700