They're Blocking E-Mails ProLog (Pen Tele Data, PenTeleData, or PTD), which I get through Blue Ridge Cable, started blocking e-mails from Yahoo! on my wife's account, though not on mine. When I complained, they said basically too bad, but that Yahoo! knew what it had to do "to get off of the list."
Plus, they are having more frequent glitches. E-mails to me appear in quadruplicate. There are many momentary outages, so that I have to reconnect to work in the middle of a report.
I've started using my cell phone's Internet connection (AT&T). It's slower, but seems to be more reliable.
I gave up on their email a couple years ago when they implemented that "new and improved" relay server that won't relay non-Prolog domains and went to mail on a virtual server and recently Gmail and have been very happy. Plus I don't have to tell the world I use Prolog.
It sounds like one of Yahoo's mail servers got listed on an RBL. It's likely an email to your wife came through a particular Yahoo server that was RBLed and you got an email through one that wasn't. I'm sure Prolog could whitelist the server in question....if they wanted to.
Looks like Prolog is blocking a Google Gmail server today:
"Technical details of permanent failure:
PERM_FAILURE: SMTP Error (state 12): 553 sorry, your mailserver [220.127.116.11] is rejected by See »www.ptd.net/RBL."
Too bad I'm not the "responsible person" of the server in question as their web page states, so I can't report it to Prolog and help them out I'm not wasting my time complaining to Google as any email server from google.com should be a no-brainer white listing in Prolog's private RBL.
reply to UnhappyInPA
FYI. Prolog is also having an issue with a good portion of their IP's being on the rbl list. Check yours out with mxtoolbox.