Avatar of tankergoblin
tankergoblin
 asked on

mail server

Hi,

i receive a message of 5.1.2 - Bad destination host "DNS Hard Error looking up mydomain.com' (MX): -- error message received by sender.

This happen to one of the user want to send email you our mail server.

we find no record of email received from the sender from our sid. meaning message has not reached my server and i have checked the spam blacklisted and found that there is a block from  SORBS-SPAM.

Due to that problem i have added sender email to the whitelists of my spam mail firewall and mail server.

Above solution doesnt solve the problem the email send by sender still bounce.

any idea?
Switches / HubsEmail Servers

Avatar of undefined
Last Comment
Exchange_Geek

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
Exchange_Geek

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
Experts Exchange has (a) saved my job multiple times, (b) saved me hours, days, and even weeks of work, and often (c) makes me look like a superhero! This place is MAGIC!
Walt Forbes