Unable to send New Message
Hi,
I am facing an issue with Thunderbird.
I integrated my email address but there problem is the new message is giving "Undelivered Mail Returned to Sender" but I can reply and receive the emails.
Please guide me about it.
Many Thanks
Wšě wotmołwy (1)
This is not a Thunderbird issue. The error you are receiving is a security check enforced by Gmail, but not uniformly by others. So, while you may be able to email other email providers, you cannot send to Gmail addresses. The error is that your domain name is not properly documented as being identified with the IP address you are using. You need to work with your domain registrar and/or your email host provider to resolve this.