Outlook 365 and Optimum email

I recently installed Outlook 365.  When I put in my Cablevision/Optimum email account, I got a message saying "We couldn't find info for that account...." My account ends with @optonline.net.  I am inputting POP and mail.optonline.net
Hello my name is Michael and I am an independent advisor and an Office user as well. I might be able to lend a hand. Looks like from their support site, the server settings have changed:

POP (Inbound)
Incoming mail server: mail.optimum.net
Incoming mail port (SSL): 995 (Secure Connection. Recommended if your mail client supports)
Incoming mail port: 110 (Not recommended. Legacy mail clients only)

SMTP (Outbound)
Outgoing mail server: mail.optimum.net
Outgoing mail port (SSL): 465 (Secure Connection. Recommended if your mail client supports)
Outgoing mail port: Port: 587 (Not recommended. Legacy mail clients only)
Check My SMTP server requires authentication

You can view these settings on the support site here:

https://www.optimum.net/FAQ/#/answers/a_id/3614...

I must warn you that this is an external website. Even though the site solicits payed services, you are an existing customer so the link should be safe. Please practice safe browsing habits and let us know if that helps.
Mike Snyder

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Got it working.  Thanks.

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Last updated February 24, 2021 Views 1,630 Applies to: