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.

Mozilla Support में खोजें

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

Thunderbird multiple accounts

  • 1 प्रत्युत्तर दें
  • 0 यह समस्या है
  • 2 views
  • के द्वारा अंतिम प्रतियुतर gp

more options

Good morning. I have a number of email accounts coming into Thunderbird. I am unable to send emails from one account. This is the message that pops up. "Sending of the message failed. An error occurred while sending mail. The mail server responded: Must issue a STARTTLS command first. 15-20020a17090a08cf00b001efa9e83927sm6583636pjn.51 - gsmtp. Please verify that your email address is correct in your account settings and try again."

Can you help? Thanks in advance Jan

Good morning. I have a number of email accounts coming into Thunderbird. I am unable to send emails from one account. This is the message that pops up. "Sending of the message failed. An error occurred while sending mail. The mail server responded: Must issue a STARTTLS command first. 15-20020a17090a08cf00b001efa9e83927sm6583636pjn.51 - gsmtp. Please verify that your email address is correct in your account settings and try again." Can you help? Thanks in advance Jan

All Replies (1)

more options

Hello

for this account, you have to go to Edit / Account settings, in Server Settings, Security Settings, select 'Use StartTls' in the Connection security dropdown list.