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unable to send emails; smtp error message

Since upgrading to 10.8 (10.8.2), two separate users and two separate email accounts on our iMac are unable to send emails out using Mail; but we are able to receive emails. It has only begun since upgrading to Mountain Lion.


I see many posts about this similar issue, with many different possible causes and ways to resolve which none seem to work.


Anyone have any updates or ideas on how to resolve this issue? Everything worked fine until the upgrade.


Below is the error message we receive:


Cannot send message using the server smtp.att.yahoo.com


The SMTP connection to server “smtp.att.yahoo.com” failed.


Select a different outgoing mail server from the list below or click Try Later to leave the message in your Outbox until it can be sent.


---


Trying to log in to this smtp account failed. Verify that the username and password are correct.


Thanks for anyone's help!

iMac (24-inch Early 2009), OS X Mountain Lion (10.8.2), iPhone 3GS

Posted on Oct 2, 2012 9:06 PM

Reply
54 replies

Oct 12, 2012 5:48 PM in response to mwearl

Yes, it has been working all day and the locks have not returned. A few days ago I thought possibly the locks were appearing after the computer was awoken from sleep so I turned of the sleeping feature. It's still off and I'm not going to test that theory until mail has been working consistently without the locks.


I tested The House Captn's macmail today and only got the "password loop to pacbell.server" question once and hers has not locked once or has the locks appeared. Same set up with Pacbell only difference is eamil address. Actually it's just a second mailbox on the same account. I'll test out the laptop a little later. The ipone has had no problems at all.


So far so good and I'll keep my fingers crossed. It's usually the first thing I check after getting up in the early a.m. I also set up a another Gmail IMAP account in macmail and it's had no problems.

Oct 17, 2012 10:05 AM in response to bgoodz

Hi Everybody:


Our office server and subaccounts stopped working at 11 a.m. Oct. 2 insofar as SMTP. We spent over $100 on worthless ATT 360, paid a Mac expert for four hours time and it could never get fixed. We tried everything, all the different settings, bla-bla. Thing is, I have the same OS, the same DSL service at home and there is absolutely no problem. At work, we have a business account and pay more. You'd think ATT would give a ****, but of course they don't. They just blame Apple.


When the expert was here, after about three hours on the phone, he was connected to someone who admitted a memo had gone out about this problem and support people were SUPPOSED to all know about it, rather than hustle 360 service or ******** their way and waste our time.


The one difference between home and work is that at work, we send lots of pdf attachments. We are a newspaper and send ad proofs back and forth as well as text attachments. I keep thinking there is some kind of usage redflag or something. We have had multiple experiences of constantly having to resubmit passwords, something which never happens at home. We are on a replacement modem, but the problem existed with both, insofar as frequent requests for password.


Anyway, I gave up and downloaded Thunderbird and it worked perfectly, in fact, faster than Mail ever has.


I have no idea what is going on, other than the multiple phenomena: ATT is too huge. ATT is working WITH Apple with all these iPhones. Apple wants us to use iCloud mail accounts, right? I mean, you can spin your mental wheels for hours trying to figure it out..


I think Apple needs to update Mail. MAYBE that would work, maybe not.

Oct 19, 2012 8:34 AM in response to Teal

All my outgoing mail servers went offline simultaneously yesterday afternoon, according to Mail.


Yahoo, Google, and 3 "indepdendent" providers. I cannot send any email. I have not installed any updates recently. It worked yesterday morning, and then it just stopped working. All Connection Doctor tells me is "Could not connect to this SMTP server. Check your network connection and that you have entered the correct information/check your SSL." I haven't touched these settings in months.


I had hoped I'd wake up and it would be working as suddenly as it died, but alas, no.


Any additional thoughts from anyone?

Nov 14, 2012 3:59 PM in response to oopaddy

I haven't seen the smtp password get randomly cleared, but I have seen the password get consistently cleared immediately after putting it in for the first time and saving it.


Without fail, each time I put the password in, save and close. The very next time I go back into the smtp settings, the password is gone. Puttting it back in the second time seems to hold. It's just become part of my routine to always do it twice.

unable to send emails; smtp error message

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