I wrote to John Hardin,
| > If you're doing it within procmail, procmail considers continuation lines
| > in headers as if the embedded newline were a space, and it will match .
| > in a regexp condition.
John replied.
| ...yes, but: in a MIME attachment header, which appears in the RFC-822
| message *body*?
Oops. You're absolutely right. I forgot that we were looking at the body.
So one has to match on (.|^[ ]) instead of just . as in a header.
Sorry for missing that.
Too dang bad these multi-part chimeras can't be split into components with
some variation on formail -s so that they can then be processed as individual
messages, and each part's inner header lines will look like a header.
| I'm running procmail-3.10-10 - perhaps a newer release does indeed unwrap
| MIME attachment headers within the RFC822 body.
No, not yet.