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!

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

cannot send mail

  • 1 nzaghachinzaghachi
  • 1 nwere nsogbu anwere nsogbu a
  • 1 view
  • Nzaghachi ikpeazụ nke Matt

more options

After installing thunderbird 78.10.1 sending an email I get the error message: “An error occurred while sending mail. The mail server sent an incorrect greeting: resomtapo-11v sys.comcast.net IP 54.153.75.67 is not permitted to send messages. Contact support if you feel this is in error.”

After installing thunderbird 78.10.1 sending an email I get the error message: “An error occurred while sending mail. The mail server sent an incorrect greeting: resomtapo-11v sys.comcast.net IP 54.153.75.67 is not permitted to send messages. Contact support if you feel this is in error.”

Edeziri site na Matt

All Replies (1)

more options

Have you contacted comcast to ask their support why? that is what the error says to do it you think there has been an error. Personally I would like to know why, but I am guessing yet again that comcast have messed up their anti spam filters on their SMTP servers by blocking their own users.