North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Heads-up: AT&T apparently going to whitelist-only inbound mail
On Tuesday, 2003-10-21 at 17:24 AST, Jeff Wasilko <[email protected]> wrote: > ----- Forwarded message ----- > What AT&T is asking is for you to help AT&T to restrict incoming mail > to just our known and trusted sources (e.g., business partners, clients > and customers). Therefore, we need to know which IP address(es) are > used by your outbound e-mail service so we can selectively permit them. > Please send this information to the following e-mail address > ([email protected]). > > ----- Original Message (Sent Monday, 10/20/03) ----- > AT&T has an urgent situation with our anti-spam list. In order to > continue to allow email to AT&T you need to provide the IP addresses of > all your outbound email gateways. If you do not respond immediately, > your access may not continue. The required information should be sent > to [email protected] > ----- End forwarded message ----- It sure looks to me that they are referring to outbound (from the customer, through AT&T, to the Internet) mail only. Presumably this means they are going to either block all 25/tcp from their customers except from those addresses on their list. Alternatively they might be routing all outbound customer mail from non-whitelisted machines through a transparent proxy; possibly the proxy would rate limit the amount of mail being allowed. Tony Rall
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