Blocking e-mail with special characters in username

Gerard Seibert gerard at
Fri Dec 1 22:22:45 GMT 2006

On Friday December 01, 2006 at 05:57:19 (AM) emm1 wrote:

> I have been having alot of e-mails like this one
> from=<biographicalparallelism's at>. How can I block e-mail that
> contain characters like ' in the username/domain field?

After some checking, mainly RFC2822, it would appear that the apostrophe
(') is legal in the email header although some MUA's do choke on it.
Unless you can concoct some legitimate reason for bouncing the mail,
perhaps just sending it to the bit bucket would be a better solution.


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