Enhanced status code

SMTP error X.7.12

Password transition needed

Updated Jul 1, 2026

The short answer

Password transition needed Common cause: Account must migrate to a new authentication method

Quick fix

Complete the required password / authentication transition

This code is written X.7.12 because the reason is the same whether the failure is temporary (a 4 first digit) or permanent (a 5). Read the first digit of your own bounce to know which applies.

How to fix it

Complete the required password / authentication transition

Related codes

X.7.0 Other or undefined security status X.7.1 Delivery not authorized X.7.2 Mailing list expansion prohibited X.7.3 Security conversion required but impossible X.7.4 Security features not supported X.7.5 Cryptographic failure
All SMTP error codes
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