Microsoft 365 SMTP
Microsoft 365 SMTP Settings
The SMTP server, port and encryption for Microsoft 365 work mailboxes, how to turn on SMTP AUTH, and what to do when a printer or app still won't send.
5 min read
Microsoft 365 help
Work and school mailboxes on Exchange Online — SMTP, IMAP and POP settings for apps, printers and scanners.
2 guides available
Independent guide — not affiliated with or endorsed by Microsoft 365.
Microsoft 365 business mail runs on Exchange Online. These guides cover connecting work and school mailboxes to mail apps, multifunction printers, scanners and line-of-business applications. Personal Outlook.com, Hotmail and Live addresses use different servers — see the Outlook.com guides.
Every guide
All Microsoft 365 guides
Microsoft 365 Security
Microsoft 365 SPF, DKIM & DMARC Setup
Set up SPF, DKIM and DMARC for a custom domain in Microsoft 365: the exact SPF record for each Microsoft cloud, the two DKIM CNAMEs, and a safe DMARC rollout.
6 min read