I recieved this message after sending a e mail which i can still recieve them and can send via post office can any one help me.
Your message did not reach some or all of the intended recipients.
Subject: Review Document
Sent: 1/06/2021 4:30 PM
The following recipient(s) cannot be reached:
Catherine Stewart on 1/06/2021 4:30 PM
Server error: '550 5.7.1 <>... Relaying denied. IP name possibly forged [188.8.131.52]'