D'aww, I only show up when there's trouble!
Mom has been happily abiding with her service for months since I gave up and swapped in a Netgear (Staples-sourced) for the latest flaky 2Wire 2701HG [constant 'DMA errors' - did I miss a legitimate explanation for this after the 'just ignore it even though it drops the link for seconds every time' handwaving about a year back?].*
However, for the past week or two, she suddenly lost outgoing mail access through smtp.att.yahoo.com, and trying to walk through a switch to "outbound.att.net" results in equivalent authentication errors despite using the same login and password that'd been working for ages [checked before we disturbed the password field in her mail client by retyping it].
It's an @sbcglobal.net account. Anyone aware of global or local issues re: same? A perusal of other complaints suggests this crops up as a 'regional' problem randomly, but that reads more like the centralized MTA is losing access to certain auth DBs than anything that might truly be local (then again, I don't know how decentralized all the various pools of auth info are stored within Ma Bell 2.0's mothership!).
Also, if I should be aware of any service upgrades or options available to people who've been automatically renewing whatever the 'default' 1.5mbit/"cheap" plan is for years in Ridgefield or Torrington, or impending service changes, let me know - just been too busy and out-of-the-loop. [Being "stuck" with free cable c/o the landlords at my new residence is making me realize 1.5 is getting a little long in the tooth, but I'm not feeling a lot of love for any provider, and hey, kudos to AT&T for keeping service up during last year's storms even when there was no power available to use it.]
*Used to be a big 2Wire fan, too, but those last couple products before they got bought out certainly seem to have been 'troubled.'
Edit: Probably important info - the client is Mail.app on Mac OS Lion (or possibly ML, it's been a while). As far as I can tell without VNC'ing in, this only provides options for "SSL" on/off, no specific way to demand it go straight to TLS over SSL, but maybe I've missed something. The auth problem is only with SMTP and it seems to be making the link properly and just getting the l/p combination [as happily works in »mail.yahoo.com
and still works with pop.att.yahoo.com] rejected, though.