Please set a PTR (reverse DNS) record for my IP 140.245.16.10 pointing to mail.harshvardhansolanki.com

[calport]

This is not the proper way to seek assistance from the community.

See

Forum Guidelines: Please read before posting!

In order to maximize our ability to help as many people as possible, and in order to keep things friendly and fun, we have some forum guidelines that we ask you to follow when posting new topics or commenting. I present them below in a delightful series of short “Dos and Don’ts” Do Focus! If you have multiple problems, make multiple posts. Do not combine several problems into one post. Include the following: Distro/version, when you installed, steps to cause the problem, any errors you got, re…

Are you too busy to post a different subject and message body? Is the community supposed to figure out what you wish to achieve by reading every line of the screenshot?