That is a behavior of every mail server that I know of.

I don't see why this means IMS has to do the same, there's nothing in the smtp rfc about providing information about the server software in the service ready response.



SOme firewalls (PIX, for example) allow you to mask this.

Which would suggest that it's not a bad idea to just add an option to IMS to hide the server software information.



BTW, I just needed to know about this because we had some security guys in looking over our stuff recently and one of the things they pointed out was that the smtp server provided information that they thought would be better hidden. TBH, I'd never thought about it before, but when mentioned, it seemed a pretty reasonable (one might say obvious) thing to do.



Mark


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