POP3 message format rfc

Question

Hi people, I'm currently coding, as the part of a bigger project, a webmail client.

I'd just need a quick reference and/or pointer towards the right direction about POP3 messages, as I'll have to parse them.

I don't want to use available libraries for this. I just need to know if there is something I can read to understand what to expect in a message.

Thanks!

[Precision Edit:] I'm really talking about a single message's syntax, here. There are "From" fields, and "To" fields, and many other fields, like Mime-Type and stuff, and I want to know if there is a doc somewhere that specifies what is sent back on a successful RETR command.

[Addendum] One might want to look up RFC 822 in addition to RFC 1939.

Answer 1

The RFC is here

And here's a java tutorial on the subject.