Hi,
i install a plesk 17.3 System. Send emails via the specified IP address.
But if i send emails to gmx or gmail. I got this error. How can i fix this issure?
Nov 10 11:51:27 plesk postfix/smtp[9509]: 310603E84F: to=<
[email protected]>, relay=mx00.emig.gmx.net[212.227.15.9]:25, delay=1096...