Your pure guess is as good as anybody's. :))

We've seen Imail logs in this list where AOL rejects mail after DNS validation failure with a nice, RFC 821 5xx message, because the @senderdomain was not in DNS.

They must do something else, but not MAPS, to detect and reject spam and I think they do it after the mail is accepted for delivery.

If they decide it's non-valid, maybe they don't burden their own systems with bouncing, but just drop it.

All these mega-corps are run by lawyers so I doubt we'll ever find out thing about their mail rejection poicies since no employee is permitted to communicate anything that could actionable, and in the USA lawyer think, basically everything is actionable.

You could imagine if some important piece of mail was accepted by their gateway, that could be construed as "accepting responsiblity for delivery". Tthen if it was proven then didn't deliver, for a piece of mail that costs somebody a $1,000,000, etc, etc, etc.

What is their ToS / SLA for mail that is accepted by their gateways. Do they have responsibility or committment for any mail delivery?

Do they run and keep mail logs?

Len

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