i have domain jatek.com i have two connection to different ISP and have public IP in each ISP router failover fature is off.
jatek.com. is pointed to ip 220.127.116.11 so is www.jatek.com (ISP A)
mx is pointed to 18.104.22.168 (ISP B)
everything works fine, until when i send an email to @cigna.com, the mail is bouncing with error message :
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
can anyone help me please.. thanks.