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.

Search Support

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.

Rohkem teavet

Cannot connect on Imap port 993 for only one account and only on TB

  • 3 vastust
  • 1 on selline probleem
  • 42 views
  • Viimati vastas voragar

more options

Hello, I have been using an IMAP account till 2 month ago and it worked ok. It was setup to use SSL/TLS on port 993 and was working. I did not notice any error until few days ago and realized it hasn't been working for 2 months. I accessed it and saw it was unable to sync and subscribe to folders. I checked ISP settings suggested for it and they have not been chanhed. I tried to use no security and port 143 and it works. I used other Mail clients and they are able to use SSL/TLS on port 993. Just One of the many I tried automatically selected Legacy SSL/TLS, but all of them are working on port 993 except Thunderbird.

Hello, I have been using an IMAP account till 2 month ago and it worked ok. It was setup to use SSL/TLS on port 993 and was working. I did not notice any error until few days ago and realized it hasn't been working for 2 months. I accessed it and saw it was unable to sync and subscribe to folders. I checked ISP settings suggested for it and they have not been chanhed. I tried to use no security and port 143 and it works. I used other Mail clients and they are able to use SSL/TLS on port 993. Just One of the many I tried automatically selected Legacy SSL/TLS, but all of them are working on port 993 except Thunderbird.

Valitud lahendus

What is the server name? It may be one with a TLS version that is older than the one required by TB 78.

https://support.mozilla.org/en-US/questions/1295861

Loe vastust kontekstis 👍 0

All Replies (3)

more options

Valitud lahendus

What is the server name? It may be one with a TLS version that is older than the one required by TB 78.

https://support.mozilla.org/en-US/questions/1295861

more options

it is my ISP fastwebnet.it . I will check the link you gave me thanks.

more options

Thanks a lot, it worked!

-) Very very kind of you!