Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Caută ajutor

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Află mai multe

Acest fir de discuție a fost arhivat. Adresează o întrebare nouă dacă ai nevoie de ajutor.

TB works fine for direct internet connection but fails to connect when behind proxy

  • 1 răspuns
  • 1 are această problemă
  • 8 vizualizări
  • Ultimul răspuns de Tonnes

Chief-engineer
Chief-engineer
more options

Dear Mozila thunderbird team, I have installed TB 38.2.0 on a laptop which works fine when connected to direct internet connection but fails when I plug LAN of my office which has a internet access via proxy. When I use LAN of my office I need to enable the proxy setting at internet explorer--tools--internet options--connection--lan settings, post which my mozila browser & internet explorer gives me internet access but Thunderbird give erros as " failed to connect server"

I have also tried both option of internet connection in Thunderbird namely :"Auto detect proxy settings for this network" & "Use system proxy settings" but result from Thunderbird is same failed to connect server

Dear Mozila thunderbird team, I have installed TB 38.2.0 on a laptop which works fine when connected to direct internet connection but fails when I plug LAN of my office which has a internet access via proxy. When I use LAN of my office I need to enable the proxy setting at internet explorer--tools--internet options--connection--lan settings, post which my mozila browser & internet explorer gives me internet access but Thunderbird give erros as " failed to connect server" I have also tried both option of internet connection in Thunderbird namely :"Auto detect proxy settings for this network" & "Use system proxy settings" but result from Thunderbird is same failed to connect server

Toate răspunsurile (1)

Tonnes
Tonnes
  • Locale Leader
more options

Hello,

The Internet settings you refer to in Thunderbird are only valid for web pages visited from internal links in Thunderbird, e.g. from the Mal Start page or Add-ons Manager. If you use the same settings as the ones used in Firefox or any other browser, that should be OK and those pages should load.

The (literal) "Failed to connect to server <server name>" message should only be displayed when Thunderbird can’t connect to the mail server when retrieving or sending messages. Is that what you meant above, i.e. sending and receiving mail does not work? If so, please have a look at the Cannot Send Messages and Cannot receive messages articles.

Now I might be wrong on this, but think sending / receiving mail bypasses proxies and uses other ports than the ones proxies are generally intended for (web pages / port 80/443 traffic.)