.TH iftocc 1 .SH NAME iftocc \- check for blind carbon copies .SH SYNOPSIS .B iftocc [ .I okaddr ... ] .SH DESCRIPTION .B iftocc reads a mail message from its standard input. It exits 0 if .B $RECIPIENT is listed in a .B To or .B Cc field, 100 if not. Addresses are compared without regard to case. If you list some .IR okaddr s, .B iftocc will use them in place of .BR $RECIPIENT . It exits 100 if none of them are listed in .B To or .BR Cc . For example, with qmail 1.03 and above, you can put .EX |bouncesaying 'I do not accept Bcc.' except iftocc .EE into your .B .qmail file to reject blind carbon copies (including messages from mailing lists), or .EX |condredirect me-blind except iftocc .EE to forward all blind carbon copies to me-blind. .B WARNING: If you create a .B .qmail file to invoke .BR iftocc , make sure to add a line specifying delivery to your normal mailbox. .SH "SEE ALSO" bouncesaying(1), condredirect(1), except(1), dot-qmail(5)