K K: > Hi all, > > are there any possibilities to check multiple recipients based on > check_recipient_access restriction ?
As documented, smtpd_recipient_strictions is invoked once for each RCPT TO command. If you allow X to send email to A or B but disallow multiple recipients, then X can easily work around that by sending single-recipient mail. Alternatively, X could just send through qmail, which always sends single-recipient mail. If you still want to do complex logic, then it will need to be done with the SMTPD policy delegation protocol. Wietse