MIME/IMF error codes?
I need to write php code to identify common e-mail errors, like "inbox full" or specially "invalid email name" from email messages, because we need to clear our databases from no开发者_StackOverflownexistent emails.
I'm looking the MIME and IMF formats but I didn't find any kind of standard error code, does it exist?
This may help:
http://www.unixhub.com/docs/email/SMTPcodes.html
There are a lot of RFCs for email, and error codes.
The one you specified may be (550)
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