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

Delivery status notifications dsn

  • 1 valiny
  • 0 manana an'ity olana ity
  • Valiny farany nomen'i Matt

t s
t s
more options

Hi, before I send the email, I select the delivery status notification dsn from the options and then send the email, so I don't receive any email. I use version Thunderbird 128.2.3esr. Thanks for informations.

Hi, before I send the email, I select the delivery status notification dsn from the options and then send the email, so I don't receive any email. I use version Thunderbird 128.2.3esr. Thanks for informations.

All Replies (1)

Matt
Matt
  • Moderator
  • Top 10 Contributor
more options

DSN is still in the standard and still can be requested by mail clients, but the vast majority of mail servers have it disabled. Fundamentally backscatter was getting them listed as spammers and resulting in their ability to deliver mail being restricted. Disabling DSN stops the whole backscatter problem.

Helpful?

Mametraha fanontaniana

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.