Guys, I have successfully established a domain mccarthy.network, and set up a box on Digital Ocean, 220.127.116.11 two days ago. Everything worked flawlessly until Spamhaus blocked my IP and domain yesterday.
I have requested they clear them and they refused.
So now I cannot send a single message, due to error “SMTP Error (554): Failed to add recipient "firstname.lastname@example.org” (5.7.1 Service unavailable; Sender address [email@example.com] blocked using dbl.spamhaus.org; https://www.spamhaus.org/query/domain/mccarthy.network)."
I can repeat the process, with a new IP address, and new domain, but that seems silly. Any suggestions?
Thanks in advance!!!