Hi folks, I have a postfix 2.10 with the following parameters set: smtp_address_preference = any inet_protocols = all
Sometimes users get this kind of errors: <snip> This is the mail system at host groupware.example.com. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system <apere...@another-example.com>: Host or domain name not found. Name service error for name=another-example.com.mail.protection.outlook.com type=AAAA: Host found but no data record of requested type </snip> AFAIK if DNS over IPv6 fails it tries over IPv4, doesn't it? I wonder if beyond this bouncing the smtp uses then IPv4 and sends the messages anyway. Please could you clarify this for me? Thanks in advance -- -- Sergio Belkin LPIC-2 Certified - http://www.lpi.org
