Proofpoint / SMTP error code 550
smtp;550 5.1.1 - This is not a valid email address. Please verify that you have the correct email address for your recipient.
This SMTP response doesn’t have any information yet. Be the first to contribute!
▒█▓▓▒░▒▒█▒░▓░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓█▒░▒▓▒░▓▓▓▓▓▓▓▓▓▒▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▓▒░▒░▓▒▓░▒▓▓▒█░░▒█▓▓▓▓▓▓▓▓▓▓▓▒░██▓▓▓▓▓▓▓▓▓▓▒▒▓▓▒▒░▒░░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▒▒▒▓░░▓░▒░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓░▓▓▓▓▓▓▓▓▓░▒▓▒░▓▓▓▓▓▓▓▓▓▓▒░░▓▓▓▓▓▓▓▓▓▒▓█▒▒▒░▒▒▒▓▓▓▓▓▓▓▓▓░░░▓█▒▓▓▓▓▓▓▓▓▓▓░▓▓▓▓▓▓▓▓▓▒▓░█▓▓▓▓▓▓▓▓▓░▓▓▓▓▓▓▓▓▓▒█▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓░░░█▓▓▓▓▓▓▓▓▓░▒▓▒▓▓▓▓▓▓▓▓▓█░▒░█░▒▒▓▓▓▓▓▓▓▓▓▒█▒▒░▓░▓▒▓▒▒░█▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓█▒▒▒▓▓▓▓▓▓▓▓▓▓▒▓▒▒░▒▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▓▓▓▒█▒░▒▓▒▒█▒▓▒▓░██▓▓▓▓▓▓▓▓▓▒░▓▒░█▓▓▓▓▓▓▓▓▓▓▓▓░▓▓▓▓▓▓▓▓▓▓▒░░█░▒░██░█▓▓░░▓▒▓░▒▒░█▓▓▓▓▓▓▓▓▓▒░▒█░██▒▓▒░▓▓░▓█░▓▓▓▓▓▓▓▓▓░░▒▓░▒▓▓▓▓▓▓▓▓▓▓░▒▒▓▓▓▓▓▓▓▓▓▓▓▒▒░▒▒▓░▓▓▓▓▓▓▓▓▓██▓▓▓▓▓▓▓▓▓▒█▓▓▓▓▓▓▓▓▓▒▓█▒▓▓▓▓▓▓▓▓▓▓░▒▓▓▓▓▓▓▓▓▓▓▓█▒▒▒▒░░▒░░▓▓▓▓▓▓▓▓▓▓▓░▒▒▒█▓▒▓█▓▓░▓░▓▓▓▓▓▓▓▓▓▒█▒▓░░▒▒▓▒▓▓▒▓▓▓▓▓▓▓▓▓█▒░▓▒▒░▓░▒░▓▓▓▓▓▒▓▓▒▓▓▓▓▓▓▓▓▓░█▓█░▒▒▒▒▓▓▓▓▓▓▓▓▓▒▒░▒▒▓▓▒▓▒▒▒▒▓▓░░▓▓░▒░▒█▒▒▒▒▓▓▓▓▓▓▓▓▓░▒▒▓▓▓▓▓▓▓▓▓▒▒░░▒█▒██▓▓▓▓▓▓▓▓▓▒▓░░░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒░▓▒▓░▓▓▓▓▓▓▓▓▓░▓▒▓▓▓▓▓▓▓▓▓░▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▒▒░░▒▒▓░▒▓▓▓▓▓▓▓▓▓▓░▒░▒▒▒▒▒░▓▒▒▓▓▓▓▓▓▓▓▓▓▓░▓▓▓▓▓▓▓▓▓▒▒▓▓▓▓▓▓▓▓▓█▒▓▓▓▓▓▓▓▓▓░░▒▓░▒▒░▓▓▓▓▓▓▓▓▓▒░▓▒█▓░░▒▒▓▓░▓█░░