What Is Causing This Error?
‘SMTP Error 441’ is typically caused by a range of factors. The most common cause is a problem with the recipient’s email server. Another possibility is that the error occurs due to the outgoing SMTP port being blocked on the sender’s end. Additionally, for users of SMTP services that have a monthly quota, exceeding this limit can also lead to this error.
Resolving the Error – Solution
To resolve this error, several steps may be necessary. Initially, contacting the administrators of the recipient’s SMTP server is a good start. They can assist in verifying if you are using the correct SMTP port and the appropriate authentication type.
If the issue stems from your network, such as a blocked outgoing SMTP port, consulting with your network administrator to have it unblocked is advisable.
Lastly, for users of SMTP services with a monthly quota, consider upgrading the quota or waiting for the quota to reset if it has been exceeded.
That’s it! Now you know the common causes of SMTP error 441 and how to resolve it.
If you’d like to learn how to troubleshoot other common errors, check out the following docs: