ZeroSpam / SMTP error code 450
smtp;450 4.2.0 <email@example.com>: Recipient address rejected: example.com greylisted for 60 seconds by ZEROSPAM
Low severity
Greylisting is a common antispam measure. This mesage is asking the sending mail server to retry sending, most mail servers handle this automatically and will resend the message automatically, leading to a successful delivery.
░▓▓▓▓▓▓▓▓▓▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓█░▓██░▒▒▓▓██▒▒▒█▓██▓█░▓▒░▓▒▒░▒▒▒░▒▓▒▒▒▒▒▓▓▓▓▓▓▓▓▓▒▒▓▓▓▓▓▓▓▓▓▓▓▒▒▒░▒░░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒█▒▓▓▓▓▓▓▓▓▓██░▒▒░▒░▓▓▓▓▓▓▓▓▓█░▓▓▒▒▓▓▓▓▓▓▓▓▓░▒▓▓▓▓▓▓▓▓▓▓▒▒▒▒▒▓▒▒█░▓▓█▒▒▓░▓▓▓▓▓▓▓▓▓▓▒░▒▒░▒░░▓▒▒█░▒▒░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒░▒░▒▓▓▓▓█░▓░░░▓▒█▓▒▒▒█▓▓░▒▒▒▓▓▓▓▓▓▓▓▓▒▓▒░█░▒▓▓▓▓▓▓▓▓▓░░░▓▒▒░▒█░▒▒░▓▒▒▒█▒▒▓▓▓▓▓▓▓▓▓▓▒█▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▓▓▓▒░▒▒▒▓▓▓▓▓▓▓▓▓░▓▒▒▒▒▒░▒▓▒░█░▓██▒░▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▓░▒▓▓▓▓▓▓▓▓▓▒█▓▓▓▓▓▓▓▓▓░▒░░░▒█░░░▒█▒░▒▓▓▓▓▓▓▓▓▓▒▒▓░▓▒█▒░▒░▒▓▓▓▓▓▓▓▓▓▓░░▓▓█▓▓▓▓▓▓▓▓▓▓▒▒▓▓▓▓▓▓▓▓▓░▒▓▓▓▓▓▓▓▓▓█▒▓▒░░▓▓▓▓▓▓▓▓▓░▓░▒▒▓▒▒▒▒▒▒▒▒▒▓▒▓▒▒█▓▓▓▓▓▓▓▓▓▓▒▓▒▒▒▒▒█▓▒░▒░▓▓▓▓▓▓▓▓▓▓▓▒▒███░▒▓▓▒░▒▒█▒░▒█▒██▒█▓▓▓▓▓▓▓▓▓▒▓░▒█░▓▓▓▓▓▓▓▓▓▓░▒█▓▒░░▒▒█▒▒░░▒▓░▒▓█▒▓▒▓▓▓▓▓▓▓▓▓▒░░█▓▒▒░█▓▓▒▓▓░▓▓▓▓▓▓▓▓▓░█░▓░░▒░░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒░▒░▒▓█▒▒▒▒▒▓▓▒▒░▒▒▒▓░░░▒░░▓▒░░█▒░▒▒░░▓░░▓▒▒▓░░▒▒░█▓█▓░▓░▓▒▓▒▓▓█▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░▓▓▒▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▓░▒▓▓▓▓▓▓▓▓▓▓▒▓▒░▒▒▒▓▓▓▓▒▓░▓▒