Kunnskapsbase

421 Unexpected failure

If you are trying to send emails and get a message like:

421, response: Unexpected failure, please try later
then it could be a temporary issue. If the message says:
"No action is required on your part. Delivery attempts will continue for some time, and this warning may be repeated at intervals if the message remains undelivered. Eventually the mail delivery software will give up, and when that happens, the message will be returned to you."
then the receiving email may have problems.

If you experience this error everytime, please contact Hosttitb so we can test your email and POP client settings.

  • 27 brukere syntes dette svaret var til hjelp
Var dette svaret til hjelp?

Relaterte artikler

451 error while writing spool file

This message indicates that your email is not configured properly. Please double check you are using the correct outgoing SMTP settings. If you are still having problems, contact us via phone or...

535 Incorrect authentication data

If you have a Linux dedicated server, you can fix this problem. In root WHM, go to Email > Repair Mailbox permissions. If you do NOT have Linux dedicated, please contact us via phone or live chat.

550 error

This error indicates an inability to send emails. There are many reasons for a 550 error. 550 DICTIONARY ATTACK You must stop sending emails and pause your mailing lists. Then wait one hour. If...

Are you able to receive emails but not send?

If you aren't able to send this usually means one thing... your internet provider is blocking you from using anyone's outgoing mail servers but their own. Many major ISPs are blocking outgoing...

Are you able to send emails but not receive?

Either your domain is over quota, or your e-mail address itself is over quota. You will need to increase the amount of disk space to receive mail again. Please sign into cPanel and look in the...