Allows you to search a variety of questions and answers
One way to fix this is as follows:
1. Login to your WHM as root and click on Exim Configuration Editor on your left.
2. Uncheck the box that says: Use callouts to verify the existence of email senders and Save.
3. Go back to the Editor and click the Advanced Editor button.
4. Do a search for sender/callout.
5. When you find it, delete 'callout' and leave only 'sender'. Save.
Great Service I was using a dedicated server with AYK for about 6 months untill i sold my website. Their support is outstanding they reply very quickly and helpful. If i ever want another dedicated server i will 100% choose AYK.
Even though I only have a shared hosting plan, their technical support team responded to my tech support request within the hour, and correctly to boot. (I needed to have a subdomain point to a Tumblr blog by changing the CNAME.)
AYK provide a very good value product, and always in a professional manner. I have used several hosting companies over the past 17 years. During that time I occasionally needed help with a variety of minor setup issues. Only AYK gave quick and helpful answers. I highly recommend them.