procmail
[Top] [All Lists]

Re: RFC822 compliant email address

2002-07-03 16:08:12
On Wed, 3 Jul 2002, Werner Reisberger wrote:

I am looking for a regexp usable in a procmail recipe which checks if
an email address is valid according to rfc822.

I've had something for this sitting around for a while, so I tossed it up 
on the web:

        http://www.well.com/user/barts/email/rfc822rc.txt

It's essentially a translation of the RFC822 address grammer into a regex,
broken up as variables for readability.

Doesn't include the recursive INCLUDERC that would be necessary to strip
out parenthesized comments, though.

One exception of rfc822 could be that the local-part is not composed of
characters within double quotes. I also don't want to allow a domain
part consisting of an IP address.

In the above, to exclude quoted strings, change the definition of the
$word__ variable; to exclude domain literals, change $subdomain__.  It
should be pretty obvious what changes to make.

Then you'd use something like

* $ subscraddr ?? $mailbox__

Or perhaps

* $ subscraddr ?? $addrspec__

(The double trailing underscores are to lessen the chance of collision 
with somebody else's variable names.)

_______________________________________________
procmail mailing list
procmail(_at_)lists(_dot_)RWTH-Aachen(_dot_)DE
http://MailMan.RWTH-Aachen.DE/mailman/listinfo/procmail

<Prev in Thread] Current Thread [Next in Thread>