https://www.helpscout.com/blog/outlook-shared-mailbox-alternatives/
The best Outlook shared mailbox alternatives for support teams include Help Scout, Emailgistics, Dynamics 365 Customer Service, and more.
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https://www.manageengine.com/in/products/ad-manager/exchange-server-office-365-shared-mailbox-management.html?utm_source=admp-lhs&utm_medium=o365
Efficiently manage shared mailboxes for Exchange and Microsoft 365. Create, modify, or delete shared mailboxes from one console.
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https://www.quest.com/community/metalogix-archive-manager/f/forum/29925/shared-mailbox-attachements-form-cache-corrupt/75917
Hi I have around 65 users who are getting the error message that: "If you can see this information, your form cache is probably corrupt, Please clear the form...
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https://support.microsoft.com/en-us/topic/-the-operation-failed-error-message-when-you-try-to-book-a-resource-mailbox-from-a-shared-calendar-by-using-outlook-2010-86446773-5adf-11ab-ea35-faa554beec41
Resolves a bug in which you receive a "The operation failed" error message when you try to book a resource mailbox from a shared calendar by using Outlook 2010.
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https://www.zoho.com/mail/help/adminconsole/collaborative-inbox-settings.html
Shared Mailbox in Zoho Mail helps you to collaborate and communicate effectively with your teammates.
shared mailboxadminsettingszoho