How to access O365 email of my company and not others?

[Anand_Narayana]

I have configured to access only my company domain email ID uses Gmail and it has been working successfully. I wanted to configure the same for O365 as well for couple of my customer's email to access by our employees. Since it asks for the tenant ID is there a similar configuration of Gmail that I can use without tenant ID?

[abarushka]

Hello,

You may find useful the article below ("Restrict access to a tenant" section):

https://docs.fortinet.com/document/fortigate/7.4.4/administration-guide/8049/restricted-saas-access

[Anand_Narayana]

This configuration really worked well. Thank you. however, our customers have provided their O365 Emails IDs to few employees but they have not provided the tenet ID as per the company policy, in such case how would I permit those IDs as well?

[abarushka]

Hello,

It might be technically possible with custom IPS signatures, but there might be a more elegant solution.