In the last few weeks, TCH-hosted emails that I send to some Gmail email addresses are bouncing back with the following message:
Here are some notes about my situation:
I'm sending using the latest version of Outlook desktop using a Telus connection. (Telus is one of the largest telcos in Canada.)
I don't usually receive the bounce back message for several hours. In the meantime I have no idea whether the recipient has received my message.
The Google link in the message refers to bulk messages. These are NOT bulk messages. Just a single recipient.
These are always Gmail addresses that I've messaged with before. Mostly they are clients and I'm replying to their messages.
It appears that not every Gmail address bounces back. Some go through, some bounce back after a period of time.
Sometimes the message goes through when I resend it. Other times it bounces back again with the same error.
This has been ongoing for 2-3 weeks now.
TCH support says everything is configured properly on the back end. They suggested opening a support ticket with Google. Good luck with that...
I've Googled and found this thread, but no solution.
Any ideas??? Emails bouncing back from clients is a very troublesome scenario.