- SMTP error, RCPT TO: 550 RC:LD The email account that you tried to reach does no exists2013-11-27
- SMTP error, RCPT TO: 550 #2175041 unavailable mail user2013-11-27
- SMTP error, DATA: 554 One or more of the sender or recipients in your email are invalid and not accepted2013-11-27
- SMTP error, RCPT TO: 550 5.2.1 The email account that you tried to reach is disabled2013-11-27
- this target address is not our mx service client2013-11-27
- SMTP error, RCPT TO: 550 RC:LD The email account that you tried to reach does no exists..2013-11-27
- 550 Sender verify failed2013-11-27
- Remote host said: 550 not local host , not a gateway2013-11-27
- SMTP error, RCPT TO: 553 we don't relay to foreign addresses - Nie dostarczamy poczty do nie naszych kont email (5)2013-11-27
- SMTP error, DOT: 554 delivery error: dd This user doesn't have a yahoo.com account (test@yahoo.com) [0]2013-11-27
- SMTP error, MAIL FROM: 503 MI:ANL2013-11-27
- SMTP error, RCPT TO: 550 Disabled2013-11-27
- The attached message had PERMANENT fatal delivery errors!2013-11-27
- recipient does not have an account2013-11-27
- 发送给gmail的邮件会显示“邮件发送中”、“邮件正在投递中”等等2013-11-27
- SMTP error, DOT: 554 delivery error: dd Sorry your message to 123@abc.com cannot be delivered2013-11-27
- no mailbox here by that name2013-11-27
- mailbox 123@abc.com is restricted2013-11-27