451 4.7.0 PRX4

[Harpreet_Singh]

Hi we are using exchange server 2013 when we are trying to send mail from application getting error message 451 4.7.0 temporary server error PRX4.

[#2]

@Harpreet_Singh internal external mail both got this error?

[#3]

@whyou 

Make sure you check the below things to diagnose the problem

Things to check on application
1. Server name/smarthost?
2. SSL/TLS enabled?
3. Port No?

Things to check on server:
1. Is there a send connector present for those emails?
2. Send connector should have application's IP added in it.

Regards,

Akshay

System Admin - Apps4Rent