I'm working on a mailing list, and I need to do username validation. So far, I have the entire message read into a variable, and I'm using an (admittedly poor) split() to get the "From:" header. I know that RFC822 allows email addresses to be in formats other than the user@domain, such as the following:
   John Doe <jdoe@domain.com>
   -or-
   "'Jane Smith'" <jsmith@otherdomain.com>

My question is this: How can I extract just the username and the hostname, preferably in separate variables? (And possibly, how can I use a regexp instead of the split() to extract the From: field?)

In reply to How can I extract the username and hostname/domain from e-mail addresses? by Symuc

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