I need a solution
Our mail server with IP addresses 217.174.149.20 and 79.124.76.164 (are not blacklisted and with good reputation) can not send email to our customers and suppliers who use messagelabs.com
It maybe block by messagelabs.com
Please help us.
2018-03-05 20:37:57 1esvuo-0004bq-O7 H=CLUSTER6.US.MESSAGELABS.COM [216.82.242.36] Connection timed out
2018-03-05 20:39:00 1esvuo-0004bq-O7 H=CLUSTER6.US.MESSAGELABS.COM [216.82.249.212] Connection timed out
2018-03-05 20:40:03 1esvuo-0004bq-O7 H=CLUSTER6.US.MESSAGELABS.COM [216.82.241.100] Connection timed out
etc...
Thank you !
Regards,
Xavi.
0