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

not able to send emails

more options

Each time I try to send email I get an error message "The mail server sent an incorrect greeting: resomta-po-19v.sys.comcast.net resomta-po-19v.sys.comcast.netCSI IP 23.83.185.15 is not permitted to send messages" I am able to receive incoming emails

Each time I try to send email I get an error message "The mail server sent an incorrect greeting: resomta-po-19v.sys.comcast.net resomta-po-19v.sys.comcast.netCSI IP 23.83.185.15 is not permitted to send messages" I am able to receive incoming emails

All Replies (1)

more options

You are here with Thunderbird.


Hello there garyandlinda1 We have read your message. We try to help you.


Look for sending out messages Smtp. https://support.mozilla.org/en-US/kb/cannot-send-messages https://support.mozilla.org/en-US/kb/manual-account-configuration


Updates Can changes form fields in your settings. Did you had one? Check this settings and look if they are in correct place.


If it could be that your ip address is on a global blacklist.(or internal)

Then you will have to inform your provider how this will proceed and obtain permission after consultation to continue on the internet.

https://mxtoolbox.com/blacklists.aspx (Scanned)


Greetings Firefox volunteer.

День сумо modificouno o