https://community.talktalk.co.uk/t5/Email/Outlook-21-lineone-net-TalkTalk/m-p/3034009#M178795 <P>Hello again Phil.</P> <P>&nbsp;</P> <P>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.</P> <P>&nbsp;</P> <P><A href="https://community.talktalk.co.uk/t5/Articles/Email-settings-to-access-TalkTalk-emails/ta-p/2204399" target="_blank" rel="noopener">Email settings</A></P> <P>&nbsp;</P> <P>NB Lineone.net uses the exact same settings as talktalk.net and all other TalkTalk Consumer mail domains.&nbsp; 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.</P> Tue, 09 Apr 2024 12:26:11 GMT Gondola 2024-04-09T12:26:11Z https://community.talktalk.co.uk/t5/Email/Outlook-21-lineone-net-TalkTalk/m-p/3034006#M178793 <P>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.</P><P>Thank you for any replies</P><P>&nbsp;</P> Tue, 09 Apr 2024 12:19:04 GMT https://community.talktalk.co.uk/t5/Email/Outlook-21-lineone-net-TalkTalk/m-p/3034006#M178793 PhillC 2024-04-09T12:19:04Z https://community.talktalk.co.uk/t5/Email/Outlook-21-lineone-net-TalkTalk/m-p/3034009#M178795 <P>Hello again Phil.</P> <P>&nbsp;</P> <P>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.</P> <P>&nbsp;</P> <P><A href="https://community.talktalk.co.uk/t5/Articles/Email-settings-to-access-TalkTalk-emails/ta-p/2204399" target="_blank" rel="noopener">Email settings</A></P> <P>&nbsp;</P> <P>NB Lineone.net uses the exact same settings as talktalk.net and all other TalkTalk Consumer mail domains.&nbsp; 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.</P> Tue, 09 Apr 2024 12:26:11 GMT https://community.talktalk.co.uk/t5/Email/Outlook-21-lineone-net-TalkTalk/m-p/3034009#M178795 Gondola 2024-04-09T12:26:11Z