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

ابحث في الدعم

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.

I get an error message when forwarding or replying to a message

  • 3 ردود
  • 1 has this problem
  • 1 view
  • آخر ردّ كتبه sfhowes

jolee
jolee
more options

everytime I reply to a message that has more than a few lines of content within it, either replying or forwarding I receive this error message: An error occurred while sending mail. The mail server responded: 552 5.2.0 ESMTP server not available AUP#0-1450. Please check the message and try again.

If go into the message and delete the majority of the thread below my response it will allow me to send. This started about 2 months ago and VERY frustrating. Anyone know how to resolve this?

everytime I reply to a message that has more than a few lines of content within it, either replying or forwarding I receive this error message: An error occurred while sending mail. The mail server responded: 552 5.2.0 ESMTP server not available AUP#0-1450. Please check the message and try again. If go into the message and delete the majority of the thread below my response it will allow me to send. This started about 2 months ago and VERY frustrating. Anyone know how to resolve this?

All Replies (3)

sfhowes
sfhowes
  • Top 10 Contributor
more options

Does the quoted material you have to delete contain a lot of links or remote content that might trigger anti-spam detectors with the mail provider?

jolee
jolee صاحب السؤال
more options

No just general email material and comments

I have even turned off my firewall to make sure it wasn't being blocked by it

sfhowes
sfhowes
  • Top 10 Contributor
more options

I don't think your firewall has any effect, as the error message is returned by the mail server. A quick search shows there are quite a few users with the same problem:

https://forums.timewarnercable.com/t5/Email/552-5-2-0-ESMTP-server-not-available-AUP-O-1450/td-p/148294

https://answers.microsoft.com/en-us/msoffice/forum/msoffice_outlook-mso_other-mso_2016/i-get-error-mail-could-not-be-delivered-552-520/9074628f-5dc5-472b-be49-4ece60bdc219