‘Error 553: Requested Action Not Taken’ is typically caused by issues with the recipient’s email address, leading to server rejection. The email might be flagged as spam, the sending IP or email address could be blocklisted, or the address might be misspelled or unrecognized by the server.
Essentially, the server sees an obstacle that prevents it from delivering the email to the intended recipient.
Resolving the Error – Solution
To address this error, start by double-checking the recipient’s email address for any typos or misspellings. Ensure the domain is correct and active. If the address is accurate, verify that your IP address or email isn’t blocklisted. We also recommend reviewing the content of your email, ensuring it doesn’t have elements that could trigger spam filters.
If all these measures don’t resolve the issue, consider reaching out to the recipient’s email service provider for further assistance.
That’s it! Now you know the common causes of the 553 error and how to resolve it.
If you’d like to learn how to troubleshoot other common errors, check out the following docs: