Quoting from Mathias Buest's mail on Fri, Mar 08, 2002 at 11:11:03AM +0100:
my .fetchmailrc:
poll wtnet.de via "mail.xyz.com" no envelope no dns localdomains xyz.com
protocol pop3
user xxxxxxxx password xxxxxx is * here
fetchall
smtpaddress xyz.com
smtphost 10.0.0.1
Header from an BCC-Mail:
X-Mailer: WWW-Mail 1.5 (Global Message Exchange)
X-Flags: 0001
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
X-RCPT-TO: <xxxxxxx(_at_)xyz(_dot_)com>
Replace the 'no envelope' by 'envelope "X-RCPT-TO"'.
X-UIDL: 508
Status: U
Sunil Shetye.