Need a mail server ip

IT Support 0 Reputation points
2026-05-04T15:04:15.37+00:00

Dear Team,

We require the mail server IP details in Star Prism for configuration purposes. Kindly share the same at the earliest.

Please let us know if any additional information is required from our end.

Regards,

Microsoft 365 and Office | Subscription, account, billing | For home | Windows

1 answer

Sort by: Newest
Most helpful Newest Oldest

  1. AI answer

    2026-05-04T15:10:33.38+00:00

    For Microsoft 365 and Outlook.com mail services, a single fixed “mail server IP” cannot be provided. The service is hosted on a large, distributed infrastructure that uses many IP addresses, which can change over time for load balancing, redundancy, and security.

    For configuring applications like Star Prism, the usual practice is to configure them with the appropriate mail server hostnames (for example, SMTP/IMAP/Exchange endpoints) rather than a specific IP address. If Star Prism requires IP-based allowlisting, the correct approach is to allow access to the officially documented Microsoft 365 mail endpoints or IP ranges, as defined and managed by the mail or network administrator for the environment.

    If this is for an organization’s Microsoft 365 tenant, the internal mail administrator or IT support team should be contacted to obtain the correct server names or IP ranges and to ensure that any IP allowlisting complies with organizational policy.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

    Was this answer helpful?

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.