Package: qpopper
Version: 4.0.9.dfsg-1.1
Severity: normal
qpopper checks the format of From_ lines very pedantically; its source code
lists several variations that it supports, but the one written by 'dma'
(which happens to be the tiny MTA I tried installing in my development chroot)
is not among them. The error message qpopper issues looks something like this:
-ERR [SYS/PERM] Unable to process From lines (envelopes), change recognition
modes or check for corrupted mail drop. [pop_dropcopy.c:838]
The From_ line that dma produces looks like this:
From s...@reptile.pseudorandom.co.uk<TAB>Wed Nov 24 21:00:11 2010
(where <TAB> represents a tab character). I also tried editing /var/mail/smcv
to say:
From smcv<TAB>Wed Nov 24 21:00:11 2010
which is also unsupported. Replacing the tab with a space seems to work,
though.
RFC 4155 <http://tools.ietf.org/html/rfc4155> notes that:
The structure of the separator lines vary across implementations, but
usually contain the exact character sequence of "From", followed by a
single Space character (0x20), an email address of some kind, another
Space character, a timestamp sequence of some kind, and an end-of-
line marker. However, due to the lack of any authoritative
specification, each of these attributes are known to vary widely
across implementations.
Regards,
Simon
-- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (101,
'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
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Shell: /bin/sh linked to /bin/dash
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