I have been using Outlook 2007 on a W8.1 pc and been receiving the message in the attached image. I've purchased an i7 W11 pc and I'm thinking of buying Outlook 2021, would anyone know if the message will continue to appear.
Outlook 2021 is good and supported by both TalkTalk and Microsoft. You'll not get the security certificate error if you use the recommended TalkTalk email settings.
NB Lineone.net uses the exact same settings as talktalk.net and all other TalkTalk Consumer mail domains. The reason for the security certificate error is that lineone.net does not appear on the certificate but talktalk.net is and will support a secure connection for the legacy email domains including lineone.net.
