Installation of eM Client v.7.1.33101.0 and import of account/folders from Thunderbird were successful, but I am unable to send/receive email. Compared eM account settings to the functioning account settings in Thunderbird, and it all appears correct. Tried switching default mail to eM in system settings. Confirmed password is working correctly by logging in directly to ATT/Yahoo. Ran “fix” on Diagnostics tab and got “Fix Failed”.
Thank you
"5.7.1 Authentication Failed" after new account setup. Won't accept password. POP3/SMTP looks right.
Can you disable your anti-virus and firewall and try again?
If that does not work check that you have the following port and security policy combinations in your account settings:
SMTP
Port 587 = Force usage of SSL/TLS
IMAP
Port 993 = Use SSL/TLS on special port (legacy)
POP3
Port 995 = Use SSL/TLS on special port (legacy)
Thanks for the prompt reply. Unfortunately, I’m still getting “authentication failed”
As you suggested,
I disabled firewall/antivirus
Changed SMTP to Port 587 = Force usage of SSL/TLS.
Confirmed POP3 as Port 995 = Use SSL/TLS on special port (legacy).
It is still failing on send and receive. I also tried rebooted my computer and modem and it failed again.
I was not able to locate IMAP in Account Settings. I only have 4 tabs: General, POP3, SMTP, Diagnostics. Would you please tell me where to find IMAP.
Thank you
You won’t have an IMAP tab if you are using POP3. Sorry, I should have mentioned that.
With some services like GMail, in order to use POP3 you might have to enable using less secure apps in your Google settings. Which email provider are you using?
Can you post the complete error. You can find that in Menu > Tools > Operations.
ATT/yahoo has implemented an App password setup. I would suggest using this new setup should fix problem
4:18:04 AM Online state: changed to online due to NetworkAvailability
4:18:16 AM m-------------.net [SMTP] Connecting: To m-------------------.net
4:18:16 AM m---------------.net [POP3] Connecting: To m-----------------.net
4:18:26 AM m----------------.net [SMTP] MailClient.Accounts.LoginException: The authentication failed due to the following reason:
4:18:26 AM "Unexpected end of stream.
4:18:26 AM at MailClient.Protocols.Smtp.SmtpSendCommand.Authenticate(WorkerStatus status)
4:18:26 AM at MailClient.Protocols.Smtp.SmtpSendCommand.Connect(WorkerStatus status)
4:18:26 AM at MailClient.Protocols.Smtp.SmtpSendCommand.Execute(WorkerStatus status)
4:18:26 AM at MailClient.Commands.Command.Process(WorkerStatus status)
4:19:07 AM m-----------------.net [POP3] MailClient.Accounts.SocketException: Connection failed due to the following reason:
4:19:07 AM “Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.”
4:19:07 AM at MailClient.Protocols.Pop3.Pop3ReceiveCommand.Connect(WorkerStatus status)
4:19:07 AM at MailClient.Protocols.Pop3.Pop3ReceiveCommand.Execute(WorkerStatus status)
4:19:07 AM at MailClient.Commands.Command.Process(WorkerStatus status)
4:22:46 AM m----------------.net [SMTP] Connecting: To m-----------------------.net
4:22:46 AM m-----------------net [POP3] Connecting: To m-------------------net
4:22:58 AM m----------------.net [SMTP] MailClient.Accounts.LoginException: The authentication failed due to the following reason:
4:22:58 AM "Unexpected end of stream.
4:22:58 AM at MailClient.Protocols.Smtp.SmtpSendCommand.Authenticate(WorkerStatus status)
4:22:58 AM at MailClient.Protocols.Smtp.SmtpSendCommand.Connect(WorkerStatus status)
4:22:58 AM at MailClient.Protocols.Smtp.SmtpSendCommand.Execute(WorkerStatus status)
4:22:58 AM at MailClient.Commands.Command.Process(WorkerStatus status)
4:23:16 AM [POP3] MailClient.Accounts.SocketException: Connection failed due to the following reason:
4:23:16 AM “Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.”
4:23:16 AM at MailClient.Protocols.Pop3.Pop3ReceiveCommand.Connect(WorkerStatus status)
4:23:16 AM at MailClient.Protocols.Pop3.Pop3ReceiveCommand.Execute(WorkerStatus status)
4:23:16 AM at MailClient.Commands.Command.Process(WorkerStatus status)
One thing I noticed is that they recommend port 465 for SMTP. Although this port has been reassigned, some providers do still recommend it. So change SMTP to port back to 465 with policy set to Use SSL/TLS on special port (legacy). I don’t think it will make any difference, but at least you are using their recommended settings.
The error above indicates that there may still be a problem, probably with your anti-virus. Please make certain that it is disabled before you try again. Some anti-virus applications also have an email function, so make sure it is completely disabled.
If you are using a VPN, maybe disable that and try again.
Did you try Bob’s recommendation below?
If you are still not able to get it working, and have a Pro License, you could open a support ticket. I am sure they will be able to help you further.
RESOLVED using an AT&T Secure Mail Key… Thank you for pointing me in the right direction.
I found ATT support pages with explains new security requirements and provides instructions for both Secure Mail Key and OAuth
1. I first went to MyATT page and created a Secure-Key for my email account.
2. Then I went to Accounts > General tab > Authentication Password field and replaced my regular email password with the SecureKey.
>> Inbound and Outbound tests were successful.
I kept the POP3 and SMTP tab authentication defaults of “use identity credentials”
My ATT/Yahoo web account and my Thunderbird account (which I will eventually remove) still use my password.
I had changed the SMTP settings changed to 587 - Force SSL/TLS earlier in the troubleshooting, which I kept. But I did confirm that the original settings of SMTP of 465 - SSL/TLS (legacy) also works.
This link explains the changes to security and summary of Secure Mail Key and OAuth
https://www.att.com/esupport/article.html#!/email-support/KM1240308
This link gives instructions for creating a Secure Mail Key:
https://www.att.com/esupport/article.html#!/email-support/KM1240308
This link gives Account Setup Using Secure Mail Key (it specifies Outlook but it is basically same for eM:
[https://www.att.com/esupport/article.html#!/email-support/KM1086159
](https://www.att.com/esupport/article.html#!/email-support/KM1086159 “Link httpswwwattcomesupportarticlehtmlemail-supportKM1086159”)
Many thanks to you both for your time and help!
Thanks for all your investigation and help. I did get it working, which I detailed in my comment below. After the secure key fixed the issue, I re-enabled the firewall and antivirus and retested, and confirmed that it works fine with them running. Thanks again!
Thanks for all your investigation and help. I did get it working, which I detailed in my comment below. After the secure key fixed the issue, I re-enabled the firewall and antivirus and retested, and confirmed that it works fine with them running. Thanks again!
Good to know! And thanks for the detailed feedback below. 