Our policy doesn't allow company email accounts to be accessed from personal phones, but we need some external contractors—particularly overseas contractors—to receive operational alerts. What's the most secure and manageable way to provide those notifications without creating broad exceptions or giving them unnecessary access to our tenant?
4 Answers
The simplest option is usually to send only the necessary alerts to the contractor’s existing work address at their own company. Their employer can then handle mobile access, device security, and offboarding. Use a distribution group or approved external-contact workflow rather than giving them a mailbox in your environment.
If the alerts contain sensitive information or require access to internal systems, issue a company-managed phone instead. That gives you control over enrollment, encryption, updates, remote wipe, and the account lifecycle. Personal devices make those responsibilities much harder to manage.
For a Microsoft 365 environment, Intune app protection policies or an Android work profile can separate business data from personal apps and restrict actions such as copying, screenshots, and saving attachments. However, check licensing and guest-account requirements first. App protection only secures the managed app; it doesn’t eliminate the need to review mailbox permissions and remove external identities when contracts end.
If these are only notifications, consider a purpose-built alerting service where contractors subscribe to narrowly scoped alerts. Keep the messages free of confidential details and require authentication where appropriate. Avoid forwarding full internal mailboxes or granting vendor users access to more of the tenant than the use case requires.
Also confirm that the relevant licenses apply to guest or contractor identities. Buying and maintaining licenses for every external user may cost more and create more administration than simply sending limited alerts to their own corporate mailboxes.