Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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 archived. Please ask a new question if you need help.

Unable to send email after 115.4.1 update

  • 1 reply
  • 0 have this problem
  • 1 view
  • Last reply by david

Cirio1
Cirio1
more options

Since 115.4.1 update all attempts to send/reply/forward emails fail with error message AUP#Out-1500 asking to verify email address -- which was not changed. Same problem after update to 115.4.2. No problem to send email directly from Spectrum's Road Runner web site.

ISP: Spectrum Domain: roadrunner.com OS: W10.

Since 115.4.1 update all attempts to send/reply/forward emails fail with error message AUP#Out-1500 asking to verify email address -- which was not changed. Same problem after update to 115.4.2. No problem to send email directly from Spectrum's Road Runner web site. ISP: Spectrum Domain: roadrunner.com OS: W10.

All Replies (1)

david
david
  • Top 10 Contributor
more options

Several email providers have made security tighter, causing the message. Check your SMTP server settings to ensure it shows the full email address in user name field and is using authentication and connection security. This error also appears if using ONE smtp server for TWO or more accounts (which is more common than one might think).