Hi, if i read RFC 2821 (paragraph 2.3.5), the domain can contain only letters, digits, and hyphen but if i try to write an email with _, postfix accepts the mails.
Es: telnet 10.0.8.141 25 ehlo example.com 250-fe.example.org 250-PIPELINING 250-SIZE 220200960 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250 8BITMIME mail from: <user1@example_one.com> 250 2.1.0 Ok rcpt to: <user2@example_one.org> 250 2.1.5 Ok I tried to add reject_non_fqdn_recipient in smtpd_recipient_restrictions, but it doesn't work. Thanks * *
