From Facebook Developer Wiki

I've spent some time testing the proxied email feature, and have discovered several glaring bugs, outlined in this bug report. In short, if you want to use proxied email, be aware:

1. It only handles text/html messages correctly. text/plain and multipart/* messages are mangled beyond all recognition
   1. This may have been resolved in r134222

Correct. That check in fixed this issue. Thanks for pointing this out, Frank. -- Pete (563683308 15:16, 18 December 2008 (PST))

What's the max length of a proxied email? I'ts needed for any database planning. --100000106316399 00:38, 4 September 2009 (PDT)

It's the same as a regular email address, following RFC 5322: 64 characters in the local part, then the @ sign, then the domain name, which cannot be longer than 255 characters. Pete (563683308 13:26, 8 September 2009 (PDT))

[edit] Wordpress Integration

Does anyone know how I can integrate this into a Wordpress site? Any suggestions would be great.

Why did my edit get reverted? The stuff that I removed was complete crap. 1826335434 16:45, 11 August 2009 (PDT)

[edit] Doesn't work at all

The proxied e-mail i retrieved from "SELECT proxied_email FROM user WHERE uid = %MYID%" doesn't work at all. I've allowed the application, notifications.sendMail works fine, but when I try to send a small text or HTML e-mail to the proxied address i don't receive anything. Moreover also the "errors-to" header seems to be ignored from Facebook.

Please file a bug and include all steps to reproduce and your relevant code. Thanks, Pete (563683308 12:07, 28 September 2009 (PDT))