On Aug 23, 2013, at 12:16, Grant <emailgr...@gmail.com> wrote: >>> It depends on MTA. From the log, AOL may not use Postifx or customized the >>> checking on RCPT_TO stage (PolicyD or milter, etc). >>> >>> However, the result is that AOL MTA don't accept it for your MAIL FROM, >>> RCPT TO parameters. >> >> http://postmaster.aol.com/Postmaster.Errors.php >> >> The AOL MTA rejects it because the mailbox does not exist. A policy >> rejection results in a different return code. > > I originally started this thread because I received several "Recipient > address rejected" bounces from different aol.com addresses in the last > 24 hours. I have just now received this: > > Final-Recipient: rfc822;mas...@aol.com > Action: delayed > Status: 4.0.0 (temporary failure) > Diagnostic-Code: smtp; 4.3.2 - Not accepting messages at this time > 554-'5.7.1 : (RLY:B1) > http://postmaster.info.aol.com/errors/554rlyb1.html' (delivery > attempts: 0) > > That URL says the following which does sound like a policy violation: > > "This error message is a dynamic block on our system. Dynamic blocks > are placed on an IP address when the IP's statistics break our > threshold. These are automated blocks that are removed by the system > within 24 hours once the complaints are again below the threshold." > > Could "statistics" refer to the several messages sent from my IP > address to non-existent aol.com addresses within the last 24 hours?
Yes. It looks like you sent too many messages to non-existent mailboxes, and are therefore blacklisted for 24 hours after you stop doing that. Or at least being deferred. You aren't lishwashing or anything, are you? Can't imagine they'd do that for just a few of them. Mvg, Joni
