email issues

[shweta_singh1]

i am using mageplaza smtp extension for mail after smtp configuration i checked test mail and its working. but when someone registeres in my site or make an order then its send mail to my store email that is:contact@gurgaonretailer.com. it sends the message mail delivery failed .

bounce back mail screen shot:

how  do i fix this error .please help me to remove this error

[Damian Culotta]

Hi @shweta_singh1,

It seems the domain gurgaonretailer.com has been marked as spam for antispam software.

Maybe you can start looking here why this is happening: https://spamrl.com/

[shweta_singh1]

how to i find smtp host name of my domain

[Damian Culotta]

Hi @shweta_singh1,

Maybe you can check here: https://dnsdumpster.com/