Gmail recipient error
Fix Gmail 550 5.1.1: account does not exist
Gmail returns 550 5.1.1 when the account you tried to reach does not exist. Verify the complete recipient address with the recipient; sender DNS changes will not create or restore their mailbox.
Gmail reports:
550 5.1.1 The email account that you tried to reach does not exist.
The 550 result is permanent for that address. Do not continue retrying until the address or account state changes.
Probable causes
- A typo, copied whitespace, or wrong username.
- The account was deleted, renamed, or never created.
- An alias or group was removed.
- A directory synchronization or provisioning change has not completed.
How to resolve it
- Compare the address with a trusted source.
- Contact the recipient through another channel.
- If you administer the recipient domain, verify the user, alias, group, license, and directory sync.
- Update stored contact lists to avoid repeated bounces.
- Send a new message only after confirmation.
Frequently asked questions
What does Gmail 550 5.1.1 mean?
Gmail could not find the recipient account named in the message.
Will changing SPF fix 5.1.1?
No. This is a recipient-address condition, not sender authentication.
Can I keep retrying?
Not with the unchanged address. Confirm or correct the recipient before sending a new message.
Related email diagnostics
Primary sources: Gmail SMTP errors and codes.