Suddenly Cannot Send Thunderbird Email Messages from my Laptop

Robynmw

This error message is returned.

p-impout010.msg.pkvw.co.charter.net cmsmtp 23.162.40.126 blocked.

My outgoing SMPT server is mail.twc.com

Port is 587

Tyleen_Z

Hello and welcome to the Spectrum Community!

I do apologize for the issues with the email service. Please go to this link here to check the settings to make sure they are correct.

-Tyleen

Robynmw

Thanks. I'll see what I can do with this.

HT_Greenfield

That IP address is lacking a reverse DNS pointer record which means it's not pointing to any hostname, which is bound to be a spam-wise deal-breaker with any SMTP service outside of the network that you're on with that IP address. Try to get ahold of the admin of that network and find out if that's all by design, if you've a mind to.

🔗 https://ipinfo.io/tools/reverse-dns-lookup : Look it up, no hostname.

🔗 https://ipinfo.io/23.162.40.126 : no hostname.

🔗 https://www.spectrum.net/support/internet/understanding-email-error-codes ↳ 1100 - 1150

Robynmw

Working fine again. 😁

James_M

@Robynmw

Thanks for the update! Glad to hear it is working as expected again.

HT_Greenfield

Good! You may find the good public IP address that you now have and the hostname it points to at 🔗 https://ipinfo.io/what-is-my-ip .