'''Warning''': this can make a message destined for multiple recipients to bypass maia for all recipients, which could let a virus leak through to another protected account.  If anyone has a better solution, please help!

One simple solution provided on the mailing list for postfix users:

{{{
smtpd_recipient_restrictions = check_recipient_access hash:/etc/postfix/bypass
}}}

/etc/postfix/bypass

{{{
username@domain.org FILTER smtp:[127.0.0.1]:10025
}}}