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

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.

Learn More

This thread was closed and archived. Please ask a new question if you need help.

Cannot receive message via SSLv3-dsiabled-POP3 (TLSv1.2)

  • 1 reply
  • 1 has this problem
  • 12 views
  • Last reply by christ1

makk
makk
more options

I'm using Thunderbird 52.5.0 (64-bit) on OS X to receive and send e-mails from my company's mail server. According to recent security recommendation, we disabled SSLv3 on the server. More specifically, we use dovecot as POP3 service and postfix as SMTP service where we disabled SSLv3 on the both services.

Now both POP3 and SMTP are working on TLSv1.2 instead of SSL. But I have got a problem on my thunderbird client. I can send messages from it, but cannot receive messages with a following error: 

    An error occurred during a connection to mail.our.server.name:995. Cannot communicate securely with peer: no common encryption algorithm(s). Error code: <a id="errorCode" title="SSL_ERROR_NO_CYPHER_OVERLAP">SSL_ERROR_NO_CYPHER_OVERLAP</a>


My setting for the account is 

     Connection Security: SSL/TLS
     Authentication method:Normal password


I dont know how to fix this error.

I'm using Thunderbird 52.5.0 (64-bit) on OS X to receive and send e-mails from my company's mail server. According to recent security recommendation, we disabled SSLv3 on the server. More specifically, we use dovecot as POP3 service and postfix as SMTP service where we disabled SSLv3 on the both services. Now both POP3 and SMTP are working on TLSv1.2 instead of SSL. But I have got a problem on my thunderbird client. I can send messages from it, but cannot receive messages with a following error: An error occurred during a connection to mail.our.server.name:995. Cannot communicate securely with peer: no common encryption algorithm(s). Error code: <a id="errorCode" title="SSL_ERROR_NO_CYPHER_OVERLAP">SSL_ERROR_NO_CYPHER_OVERLAP</a> My setting for the account is Connection Security: SSL/TLS Authentication method:Normal password I dont know how to fix this error.

All Replies (1)

christ1
christ1
  • Top 25 Contributor
more options

Duplicate topic. Continue at https://support.mozilla.org/en-US/questions/1195200