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.

Learn More

smtp errors asks for STARTTLS command. Where and how?

  • 1 nzaghachinzaghachi
  • 2
  • 1 view
  • Nzaghachi ikpeazụ nke Vivek

more options

Have setup Hotmail account and can receive emails but when trying to send I get error message: An error occurred while sending mail. The mail server responded: 5.7.0 Must issue a STARTTLS command first. Please verify that your email address is correct in your Mail preferences and try again. How and where do I enter this command line?

Have setup Hotmail account and can receive emails but when trying to send I get error message: An error occurred while sending mail. The mail server responded: 5.7.0 Must issue a STARTTLS command first. Please verify that your email address is correct in your Mail preferences and try again. How and where do I enter this command line?

All Replies (1)

more options

Hi,

Is this a Thunderbird error?