Importing Mails without "to" header

[Joseph Brennan]

> Situation: an old user has a mail in his account, that was sent _only_ to
> bcc:  People, so in "to:" you will only find "<undisclosed recipients>".

Check what is really in the message.  Some mail programs display the
null address in modified form.

This is valid:         To: undisclosed recipients :;
This is not:           To: <undisclosed recipients>

I hope Cyrus is complaining only about the latter.


> When we  now try to import these mails into a cyrus imap folder we get a
> message that  an invalid header was detected.

When we migrated to Cyrus we wrote a preprocessor perl script that
rewrote certain header lines to make them standard.  The rewritten
mailbox was output to a staging area, and that's what we moved.  This
approach might work for you.


Joseph Brennan
Lead Email Systems Engineer
Columbia University Information Technology