fbpx

Currently browsing: Exchange Online

Enable Modern Authentication

Introduction Modern authentication in Exchange Online enables authentication features like multi-factor authentication (MFA). When you enable modern authentication in Exchange Online, Windows-based Outlook clients that support modern authentication (Outlook 2013 or later) use modern authentication to connect to Exchange Online […]

Read more

Disable insecure legacy email protocols (eg SMTP, POP3, IMAP) – Default Setting for New Mailboxes

Introduction Legacy email protocols such as POP and IMAP do not support modern authentication so brute force password spray attacks may succeed in breaching the tenants mailboxes. To best protect from this, we recommend you disable insecure legacy email protocols […]

Read more

Disable insecure legacy email protocols (eg SMTP, POP3, IMAP) – Enforce Existing Mailboxes

Introduction Legacy email protocols such as POP and IMAP do not support modern authentication so brute force password spray attacks may succeed in breaching the tenants mailboxes. To best protect from this, we recommend you disable insecure legacy email protocols […]

Read more

Disable TNEF Encoding

Introduction By default, Microsoft mail products such as Outlook, Office 365 and Exchange may send mail messages in a proprietary format known as TNEF that only other Microsoft products accept. This can result in other mail clients receiving emails which […]

Read more

Get Started!

The first three tenants are free! No credit card required.

Sign Up