Ubuntu

POP3 Server Connection

Asked by Lester S

Hello, I've been using Ubuntu 12.04 for at least 4 months and all of a sudden my Thunderbird email is not working. When I open the program i receive alert: Unable to establish TLS connection to POP3 server. The server may be down or may be incorrectly configured. Please verify the correct configuration in the Server Settings for your mail server in the Account Settings window and try again.
I've checked all my setting but I have not changed anything. Contacted my ISP and they suggested I contact you because they weren't able to slove my problem.
Thanks

Question information

Language:
English Edit question
Status:
Solved
For:
Ubuntu Edit question
Assignee:
No assignee Edit question
Solved by:
Lester S
Solved:
Last query:
Last reply:
Revision history for this message
Lester S (lessho) said : 		#1
Revision history for this message
Thomas Krüger (thkrueger) said : 		#2

The sudden change points to the direction of the ISP, maybe there is a fault the support is not aware of.
Can you tell which ISP it is, so I am able to check the servers?

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#3

Who is your email provider?
Does the system have web access?

Revision history for this message
Lester S (lessho) said : 		#4

My ISP is Time Warner Cable. Web access is fine.

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#5

If you run:

ping -c 4 mail.twc.com

Do you get replies?

Revision history for this message
Lester S (lessho) said : 		#6

Where do I run ping -c 4 mail.twc.com?

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#7

Press CTRL + ALT + T

Run it there. You can copy and paste to the terminal.

Revision history for this message
Lester S (lessho) said : 		#8

PING cdptpa-twc-vip.email.rr.com (107.14.166.68) 56(84) bytes of data.
64 bytes from cdptpa-twc-vip.email.rr.com (107.14.166.68): icmp_req=1 ttl=55 time=40.8 ms
64 bytes from cdptpa-twc-vip.email.rr.com (107.14.166.68): icmp_req=2 ttl=55 time=39.9 ms
64 bytes from cdptpa-twc-vip.email.rr.com (107.14.166.68): icmp_req=3 ttl=55 time=40.0 ms
64 bytes from cdptpa-twc-vip.email.rr.com (107.14.166.68): icmp_req=4 ttl=55 time=41.3 ms

--- cdptpa-twc-vip.email.rr.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3003ms
rtt min/avg/max/mdev = 39.958/40.560/41.383/0.573 ms

Revision history for this message
Lester S (lessho) said : 		#9

My ISP told me to change my mail server name to the latest company that took over which was Time Warner Cable which didn't solve my problem. I decided to change back to company name before which was Insight, they said was invalid and didn't exist anymore, well email is working again.
Thanks for your help & problem is solved.