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Re^3: Determine if domain is actually used for emailby Your Mother (Archbishop) |
on Oct 04, 2011 at 19:14 UTC ( [id://929643]=note: print w/replies, xml ) | Need Help?? |
Sure... but unless I'm misled, with UDP there simply is no way to know for sure excepting an out of band response—a visit to a tokenized URI sent in a message or a return message from the same domain/address. So no checks will be guaranteed. "Heroic" messages to circumvent misused standards / client-fail seems a mistake.
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