Laufen deine Mails in procmail durch irgendeine pipe? Wenn ja, dann ist die
Lösung (nach Spamassassin) ganz einfach.
/usr/share/doc/spamassassin/examples/procmail.example:
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# Work around procmail bug: any output on stderr will cause the "F" in "From"
# to be dropped. This will re-add it.
# NOTE: This is probably NOT needed in recent versions of procmail
:0
* ^^rom[ ]
{
LOG="*** Dropped F off From_ header! Fixing up. "
:0 fhw
| sed -e '1s/^/F/'
}
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