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Invalid or expired SS certificate of att.yahoo.com:995

Invalid or expired SS certificate of att.yahoo.com:995

RE: Invalid or expired SS certificate of att.yahoo.com:995

 2017-02-01 copy.jpg

 

My Thunderbird email client pops up a notification of invalid or expired security certificate of att.yahoo email server.  Pointed to server location:  pop.att.yahoo.com:995

 

I view the error detail that says certificate expired on 12/02/2016

 

Do anyone know what happened?   Should I permanently store this exception?

 

Thanl you.

Stephen

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Message 1 of 113
ACE - Professor
Solution
Accepted by (Former Employee)
Accepted by ATTJulieCS
‎02-02-2017 8:25 AM

Re: Invalid or expired SS certificate of att.yahoo.com:995

Award for Community Excellence 2019 Achiever*
*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
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Message 2 of 113
Teacher

ATT & SBCGLOBAL email settings

For years I have not had any issues with my email setting on my phone using:

 

I have always used pop.att.yahoo.com

smtp.att.yahoo.com

SSL turned on

port 587 and port 995

 

Now, I have errors popping up cannot verify server identity... certificate not trusted expires 12/9/16, 5:59 PM.  Unable to verify SSL server.

 

Now, I can't use email on phone.  This is my main source of using my email as I do not use a computer.  Of course, I can log into email perfectly on a computer. 

 

Of course, this e-mail was set up as I have had DSL with ATT for years. 

 

Did Yahoo change email settings? Server settings?  Change settings to where the above information is no longer exist? 

 

I appreciate an answer to my problem.

 

Thanks in advance.

 

 

 

 

Message 3 of 113
ACE - Professor
Solution
Accepted by (Former Employee)
Accepted by ATTJulieCS
‎02-17-2017 1:05 AM

Re: ATT & SBCGLOBAL email settings

Award for Community Excellence 2019 Achiever*
*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Tags (1)
Message 4 of 113
Tutor

I cannot check email in Outlook. Internet Security Warning

"Internet Security Warning"  / "Security Certificate expired and cannot be verified"  / "Issued to pop.att.yahoo.com / "Symantec Class 3 Secure Server CA – G4" / "valid 12/8/15 to 12/9/16" ?? / We check email daily and have not had a problem until now and get the same message on 2 different laptops with both using Windows 10 and Microsoft Office 365. I have checked the Clock on both computers and the current time and date are correct. I have checked with MS and they say it is not with their software; and all updates are up to date. I have also been using AVG for years and their Internet security is up to date.

 

Message 5 of 113
ACE - Professor

Re: I cannot check email in Outlook. Internet Security Warning

Award for Community Excellence 2019 Achiever*
*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 6 of 113
Teacher

Re: I cannot check email in Outlook. Internet Security Warning

I am having the same issue. It started today, February 1, at approximately 1:40 pm.

 

It is not an Outlook problem - it is strictly an ATT/Yahoo issue. Please fix this!

 

 

Message 7 of 113
Contributor

Re: I cannot check email in Outlook. Internet Security Warning

Has anyone figured out what the problem is?  Was something phased out?  Do we need to update settings?I tried changing the pop settings.

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Message 8 of 113
Mentor

Re: Invalid or expired SS certificate of att.yahoo.com:995

Unfortunately neither of these links have anything to do with an invalid SSL certificate.  The problem appears to be on the pop.att.yahoo.com outbound server.  Who is responsible for keeping the SSL certificate valid?

Message 9 of 113
Contributor

pop.att.yahoo.com:995 certificate error

Just getting this cert error now. expire date is 12/8/16 why am I getting this now? how to get rid of it?

 

Message 10 of 113
Tutor

Re: I cannot check email in Outlook. Internet Security Warning

Hi Curious-cat, thanks for your tip and I "verified my email client server settings" as the link recommended and they are up to date.; So there must be another problem. Note, we have been using this server setting since 2014 with no issues till now. If you think of another idea please pass it along.

Verify your email client server settings

Message 11 of 113
Tutor

Re: Invalid or expired SS certificate of att.yahoo.com:995

Me too.  With  Yahoo, I am not making an exception. 

Message 12 of 113
Voyager

Re: Invalid or expired SS certificate of att.yahoo.com:995

From a May 17, 2015 reply to the same error message:

 

Yes, check out the following discussion thread...

 

"Add Security Exception" Error Message - Mozilla Thunderbird Email Client

Message 13 of 113
Contributor

Re: Invalid or expired SS certificate of att.yahoo.com:995

Yes, it does resolve the problem. You should no longer be using the pop.att.yahoo.com server; those settings are obsolete. Instead use the inbound.att.net and outbound.att.net servers per the instructions in the link.

Message 14 of 113
Tutor

Re: Invalid or expired SS certificate of att.yahoo.com:995

Changing the settings (inbound and outbound) per the "u-verse" link did the trick for me.  Thank you for sharing the links!

Message 15 of 113
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