Directory / Email security gateways
Microsoft Defender for Office 365
Microsoft 365 email protection at $2 or $5 a user a month, paid yearly, with a trial.
Verdict
Microsoft's Defender for Office 365 page lists email protection at $2.00 per user per month, paid yearly, and a higher plan at $5.00 per user per month, paid yearly, that adds cyberattack simulation training. Defender Suite is listed at $12.00. A free trial is offered, a credit card is required, and the page says to cancel during the trial to avoid the charge. Trial length was not in the text we saved. The same fetch said the product is not available in that market, so check that before you buy.
- Who it is for
- Microsoft 365 customers comparing Microsoft's own mail filter and phishing drills.
- Free tier
- A free trial is offered. The page says a credit card is required, and to cancel during the trial to stop future charges. Trial length was not in the lines we saved. The page we loaded also said the product is not available in that fetch's market. Checked 14 Oct 2026.
- Pricing note
- One plan is $2.00 per user per month, paid yearly. The plan that adds cyberattack simulation training is $5.00 per user per month, paid yearly. Microsoft Defender Suite is also listed at $12.00 per user per month, paid yearly. Annual auto-renew, per the page.
- Last verified
- 14 Oct 2026
- Ownership
- Independent of this directory. Sold by Microsoft.
What holds up
- Both monthly prices are printed.
- A trial is offered.
What to watch
- Trial length is not quoted here.
- The page said the product was not available in the market of the fetch, so availability depends on region.
Alternatives
Other tools in this directory that do related work. Same ordering rules. A different job is called out in the verdict, not hidden.
- ProofpointEnterprise email security vendor. No free plan or price was readable on the homepage we fetched.
- MimecastEmail and collaboration security, sold with a quote button.
- HornetsecurityMicrosoft 365 email security and backup, with a free trial.
- KnowBe4Security awareness training, plus a free phishing simulation sandbox.