TELUS Neighbourhood

DKS · ‎04-26-2020

I am using ExpressVPN on my MacBook Pro, running macos 10.13.6 High Sierra. My email client Thunderbird 68.7.0 is no longer able to reliably send email while my VPN is running. Thunderbird puts my outgoing msg in the Outbox, but in fact the email was not sent. Instead I receive a pop-up msg which says the "The mail server sent an incorrect greeting: mtlp

Nighthawk · ‎04-27-2020

>> The SMTP settings are unchanged - smtp.telus.net, port 587, no connection security.

That is the entire problem in itself. You can only connect to smtp.telus.net without any connection security from a Telus IP. If you're using a VPN, you need to use the secure smtp settings to send. I've had no issues with Thunderbird on MacOS with the correct settings in it.

Server: smtp.telus.net

Port: 1025

Security: STARTTLS <<< Important. If SSL/TLS is selected, you will get a connection error.

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FuzzyLogic · ‎04-27-2020

I found this information for configuring Thunderbird on a PC. Not sure how different it would be on a Mac:

https://www.telus.com/en/bc/support/article/set-up-telus-email-thunderbird-mozilla

It's interesting that the servers are now gmail. I know Telus is moving to gmail but I'm not sure if this is the case for everyone.

Just a long time customer hoping to help.

TELUS Neighbourhood

email rejected on VPN