Kindly provide a solution for outlook issue on iOS

Syam Dileep(C) 0 Reputation points
2026-09-25T08:58:44.7566667+00:00

User on Intune-managed iPhone 15 running iOS 27.0.

Microsoft Outlook version 5.2637.0 crashes immediately on launch. Reboot, reinstall, and update performed without resolution. Other Microsoft apps function normally. Outlook Web Access remains accessible via Safari. Symptoms match reports from other users on Outlook 5.2637.0 and iOS 27.0.

Outlook | Outlook for mobile | Outlook for iOS | For business
0 comments

3 answers

Sort by: Oldest
Most helpful Newest Oldest
  1. Syam Dileep(C) 0 Reputation points
    2026-09-25T09:00:06.65+00:00

    This did not solve the issue. User already did re-installation, reboot and iOS update

    Was this answer helpful?

    0 comments
  2. Demi Nguyen 2,410 Reputation points Independent Advisor
    2026-09-25T09:38:29.98+00:00

    Hello Syam Dileep(C),

    Since Outlook version 5.2637.0 crashes immediately on iOS 27.0, while other Microsoft applications and Outlook on the web continue to work, this behavior points to a compatibility issue between the current Outlook mobile build and the new operating system environment.

    At this stage, the issue will need to be addressed through an update to the Outlook for iOS app. Please keep Outlook and iOS updated and install the next available Outlook release when it becomes available.

    In the meantime, please ask your IT administrator, or someone with access to the Microsoft 365 Admin Center to report the issue by going to Health > Service health > Report an issue and submit the Outlook version, iOS version, device model, crash behavior, and the troubleshooting already completed.

    User's image

    The administrator can also use Help & support in the admin center to open a support request with Microsoft.Microsoft 365 admin center 0 Search Contoso D 8. Add a user A Multi-factor authentication Refresh Delete user € X Self Help Contact Support Support History Marketplace Display name ™ Username 2 Support Assistant Off Billing Support How can we help? turn of Sp Assistance < Help & support 1 View service requests Tell us your problem so we can get you the right help and support. Customer Lockbox Requests Microsoft Surface support get help Settings 1 8/140 3 X Get Help Domains Search & intelligence Org settings Al-generated content ® Microsoft 365 Backup To get help for your Microsoft 365 for business subscription Integrated apps as an admin, you can use online or phone support options Viva available in the Microsoft 365 admin center. Here is a high- level overview and step-by-step instructions: Partner relationships 1. Access the Microsoft 365 admin center at Microsoft Edge https://admin.cloud.microsoft. You must be an admin Setup to access support features. [1] 2. On the bottom right side of the page, select Help & Reports > Contact support 4 Legal | Privacy As a temporary workaround, you can continue accessing Outlook on your iPhone through Safari at https://outlook.office.com while waiting for an Outlook update.

    Please also keep Outlook updated through the App Store so that the fix can be installed as soon as it becomes available.

    Kind regards,

    Was this answer helpful?

    0 comments
  3. Hornblower409 16,350 Reputation points
    2026-09-26T03:00:05.4466667+00:00

    Was this answer helpful?

    0 comments

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.