Not meaning to tread on your toes

Don't worry... I wear steel toed sandals here at The Monastary! ;-)

E::V cannot validate that the actual address is correct, only that there is an MX record for the domain

Agreed, and in my at the time caffeine deprived state I read between the lines and came to the conclusion that the trouble the OP was running into was Sendmail barfing on the email address. The only things I can think of that would cause that would be

1. The address is malformed (not the case IIRC)
2. The domain doesn't exist or lacks an MX
3. It is an address from the local domain that is wrong
4. Stuff I can't think of right now...

In the first two cases Email::Valid is a legitimate tool. I do, however, stand by my answer of using Mail::Send or MIME::Lite instead of piping into sendmail.

This uses Net::DNS and is hellishly slow if the MX cannot be verified.

Actually this is a case where YMMV depending on a number of factors. I've used the module extensively under all sorts of conditions and for the exceptions of some boundary conditions it has worked well for me. A misconfigured DNS client or server can cause you problems but those issues are out of scope here.

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Peter L. Berghold -- Unix Professional Peter at Berghold dot Net
	Dog trainer, dog agility exhibitor, brewer of fine Belgian style ales. Happiness is a warm, tired, contented dog curled up at your side and a good Belgian ale in your chalice.

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