421 Downstream server error

chanklish

Well-Known Member
May 22, 2015
77
0
56
kinshasa
cPanel Access Level
Root Administrator
hello awesome people
i'm receiving this error when sending to couple of people both in Lebanon - i am able to send normally to other people

"the mail server refused to talk to me: 421 Downstream server error"

the bounce mail arrives after 5-6 hours of sending the email .. is it an issue from my side or the recipient ?!

thank you