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Thunderbird does not connect to outlook.office365.com

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jazjason
jazjason
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Thunderbird is timing out while connecting to outlook.office365.com. I have it configured for POP3

POP server name outlook.office365.com

POP port 995

POP encryption method TLS/SSL

SMTP server name smtp.office365.com

SMTP port 587

SMTP encryption method STARTTLS

Auth method is Oauth2. Thunderbird version is 78.3.2

This is specific to VLAN network. When connected to other networks it works fine. Have tried deleting all accounts and profiles, recreating new profile but no luck so far. I am able to access the O365 webmail though. Just refuses to connect to Thunderbird. We also have a proxy server in place and it is able to communicate with the proxy server

Thunderbird is timing out while connecting to outlook.office365.com. I have it configured for POP3 POP server name outlook.office365.com POP port 995 POP encryption method TLS/SSL SMTP server name smtp.office365.com SMTP port 587 SMTP encryption method STARTTLS Auth method is Oauth2. Thunderbird version is 78.3.2 This is specific to VLAN network. When connected to other networks it works fine. Have tried deleting all accounts and profiles, recreating new profile but no luck so far. I am able to access the O365 webmail though. Just refuses to connect to Thunderbird. We also have a proxy server in place and it is able to communicate with the proxy server