On 31.03.21 13:54, Andreas Schamanek wrote:

On Wed, 31 Mar 2021, at 20:48, dvalin@internode.on.net wrote:

...

Whoops, I omitted to mention that procmail is invoked directly by fetchmail, through the mda option in .fetchmailrc: (...) mda /usr/bin/procmail

That delivers fine to procmail, which distributes to a dozen mailboxes, but omits the mbox separator.

I reproduced what you described using at the commandline `procmail < msg` where `msg` included no leading "From " and procmailrc delivered to Maildir. Already the LOGABSTRACT in Procmail's logfile showed no "From ". And neither did the resulting Maildir file. I did the same as root using mbox, same result.

It does work, though, with `procmail -f - < msg`.

Many thanks, Andreas, for taking the trouble to try this out. It does the job, and I can now read mail. When reading about -f in the procmail manpage, I had missed the else clause in the nested if at the end of a paragraph outlining the option doing something else. Thanks again. Erik