If your firm has an active website, you'll need an email for official communication. Below, we'll go over everything you need to know about Office 365 hosting.
Set up connectors to route mail between Microsoft 365 or Office 365 and your own email servers
How to Set Up Email Hosting with Microsoft Office 365
Office 365 Smart host smtp relay - turboSMTP
Microsoft Outlook 365 Enterprise - Mail Setup - SMTP Knowledge Base
Outlook & OWA - Office 365 Resource Mailbox - Engineering IT - Public Wiki - UT Austin Wikis
How to Set Up Email Hosting with Microsoft Office 365
Accessing Domain Emails with Office 365 (Exchange Online)
How to add your Microsoft 365 email in Outlook 2013
How Microsoft 365 server-side signatures work : Signature 365 Help Center
How to set up Microsoft 365 email on an Android device
Configuring Your Email Client for Office 365 - IT Services
How to Manage All Mailboxes and Mail Flow using Microsoft 365 or Office 365?