Unabkle to send , errot 554.1.8
Unabkle to send , errot 554.1.8
Hi, when i try to send a massage i got this massage :
"Unable to send message;Reason:554 5.1.8 Sender Address Blocked"
Can you please explain the reason for this ?
The adress is:
sale@tolstosum.com.ua
Thank you !