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APIs · head to head

Microsoft Azure API Management vs Proofpoint

Microsoft Azure API Management logo

Microsoft Azure API Management

APIs

Hybrid, multi-cloud API management service on Azure

From
Free
Rated
-
Full reviewWebsite
Proofpoint logo

Proofpoint

Cybersecurity

Email security and data protection suite from a private company owned by Thoma Bravo, licensed per user with modules sold separately.

From
$6/month
Rated
-
Full reviewWebsite

The short version

  • Only Microsoft Azure API Management has a free tier, so it costs nothing to try first.
  • Each has a real cost: Microsoft Azure API Management prices are not shown on the pricing page itself; every tier renders as a placeholder and routes to the calculator or sales; Proofpoint licensing is per user per year with each capability as a separate stock item, so the platform shown in a proof of concept is normally several products, and adding awareness training, data loss prevention or insider threat monitoring later is a fresh negotiation rather than enabling a feature.
  • They diverge on capability: Microsoft Azure API Management covers API Gateway, Proofpoint covers Inline secure email gateway.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Microsoft Azure API Management and Proofpoint actually diverge.

Attributes where Microsoft Azure API Management and Proofpoint differ
AttributeMicrosoft Azure API ManagementProofpoint
Starting priceFree$6/month
Free tierYesNo
PlatformsCloud, Hybrid, Multi-cloudEmail, Cloud, Web
CategoryAPIsCybersecurity
Founded19752002

Identical on both: pricing model (subscription), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Microsoft Azure API Management

  • API Gateway
  • Developer Portal
  • API Policies
  • Azure services
  • AWS
  • Google Cloud
  • On-premises
  • Cloud support

Only in Proofpoint

  • Inline secure email gateway
  • Attachment sandboxing
  • URL rewriting and click-time analysis
  • Threat Response Auto-Pull
  • Email Fraud Defense
  • Security awareness training
  • Insider Threat Management
  • Enterprise DLP

What people use each for

The jobs each tool is most often brought in to do.

Microsoft Azure API Management

  • API gateway and lifecycle management on Azurenot Proofpoint
  • Throttling, keys and policies in front of backend servicesnot Proofpoint
  • Developer portal for internal and partner APIsnot Proofpoint
  • Hybrid deployments using self-hosted gatewaysnot Proofpoint

Proofpoint

  • A regulated organisation that needs a filtering layer, DMARC enforcement and archiving with an auditable trail across all threenot Microsoft Azure API Management
  • An organisation that suffered a business email compromise and must show its board a control that stops delivery rather than remediating afterwardsnot Microsoft Azure API Management
  • Concentrating stronger controls and training on the specific individuals who actually receive targeted attacks rather than applying uniform policynot Microsoft Azure API Management
  • Retracting a phishing message from thousands of mailboxes after the verdict changes, including copies that were forwarded internallynot Microsoft Azure API Management

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Microsoft Azure API Management

  • Prices are not shown on the pricing page itself; every tier renders as a placeholder and routes to the calculator or sales
  • Two parallel generations of tiers, classic and v2, so the choice is which lineage before which size
  • The Developer tier is explicitly not for production
  • Self-hosted gateways and workspace gateways are charged separately from the service

Proofpoint

  • Licensing is per user per year with each capability as a separate stock item, so the platform shown in a proof of concept is normally several products, and adding awareness training, data loss prevention or insider threat monitoring later is a fresh negotiation rather than enabling a feature.
  • It sits inline with MX records pointed at it, so any service degradation is a mail outage for the entire organisation, and both migrating on and migrating off are cutovers with queueing, rollback planning and a real risk of message loss.
  • Most customers on Microsoft 365 E5 or Google Workspace Enterprise are already paying for native filtering, so Proofpoint is a second licence layered over a capability the organisation owns, and that comparison is raised by finance at every single renewal.
  • The administration console carries a decade of acquisitions: the classic gateway policy routes and filters do not share a model with the newer module interfaces, rule evaluation is order-sensitive in ways that surprise untrained administrators, and mistakes there silently change what is delivered.
  • Quarantine management is a standing helpdesk workload because legitimate bulk mail, invoices and supplier notifications are held, and unless end-user digests are configured and users are taught to use them, the security team becomes the mail release desk.

Pricing, plan by plan

Microsoft Azure API Management

Free
  • ConsumptionFree
    • 0-1 million API operations free monthly per subscription
  • Basic v2$undefined/mo
    • 10 million API requests included monthly
  • Standard v2$undefined/mo
    • 50 million API requests included monthly
  • Premium v2$undefined/mo
    • Unlimited included API requests

Proofpoint

$6/month
  • Email Protection$6/month
    • Per user
    • Advanced threat detection
    • Data loss prevention
  • Compliance$8/month
    • All Email Protection
    • Archive & search
    • eDiscovery
  • Advanced Threat$10/month
    • All Compliance features
    • Targeted attack detection
    • Behavior analytics

Which should you pick?

Choose Microsoft Azure API Management if

  • You need api gateway.
  • You want to start without paying.
  • You work on Cloud, Hybrid, Multi-cloud.
  • You also want developer portal.
Microsoft Azure API Management review

Choose Proofpoint if

  • You need inline secure email gateway.
  • You work on Email, Cloud, Web.
  • You also want attachment sandboxing.
Proofpoint review

Questions people ask

Is Microsoft Azure API Management or Proofpoint better?
Neither clearly leads. Microsoft Azure API Management starts at Free and Proofpoint at $6/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Microsoft Azure API Management or Proofpoint?
Microsoft Azure API Management has a free tier; the other does not. Paid plans start at Free for Microsoft Azure API Management and $6/month for Proofpoint.
Does Microsoft Azure API Management or Proofpoint run on more platforms?
Microsoft Azure API Management runs on Cloud, Hybrid, Multi-cloud. Proofpoint runs on Email, Cloud, Web.
Can I use Microsoft Azure API Management for free?
Yes. Microsoft Azure API Management has a free tier, so you can try it without paying. Proofpoint starts at $6/month.
What is Microsoft Azure API Management best used for?
Microsoft Azure API Management is most often used for api gateway and lifecycle management on azure, throttling, keys and policies in front of backend services, developer portal for internal and partner apis, hybrid deployments using self-hosted gateways. Of those, api gateway and lifecycle management on azure and throttling, keys and policies in front of backend services are not what Proofpoint is typically brought in for.
What can Microsoft Azure API Management do that Proofpoint cannot?
Microsoft Azure API Management covers API Gateway, Developer Portal, API Policies, Azure services. Proofpoint covers Inline secure email gateway, Attachment sandboxing, URL rewriting and click-time analysis, Threat Response Auto-Pull.

Answered from the vendors’ own pages

Microsoft Azure API Management: Is Azure API Management free?

Azure API Management offers a Consumption tier with a free tier that includes 0-1 million API operations per subscription monthly at no cost, then charges per operation beyond that. Classic Consumption tier is pay-as-you-go billing.

Source
Proofpoint: Does it replace Microsoft Defender for Office 365?

Functionally it overlaps heavily, and running both means paying twice for filtering. Most Proofpoint customers on Microsoft 365 keep Defender licensed because it is bundled in E5 and use Proofpoint as the inline gateway. Expect to justify that duplication annually.

Microsoft Azure API Management: What are the API request limits for Azure API Management's v2 tiers?

Basic v2 includes 10 million API requests monthly, Standard v2 includes 50 million monthly, and Premium v2 includes unlimited API requests. Additional requests beyond included amounts incur standard rates.

Source
Proofpoint: Who owns Proofpoint?

Thoma Bravo, a private equity firm, which took the company private in 2021. It has continued to acquire since, including Tessian, Normalyze and Hornetsecurity, which is why the portfolio spans so many adjacent categories.

Microsoft Azure API Management: What cache capacity does each Azure API Management tier provide?

Basic v2 provides 250 MB built-in cache, Standard v2 provides 1 GB cache, and Premium v2 provides 5 GB cache capacity for response caching.

Source
Proofpoint: Do I have to change my MX records?

For the gateway, yes. That is what makes it inline and able to block before delivery. Some newer capabilities integrate through the mailbox API instead, but the core protection model is MX-level.

Proofpoint: Is security awareness training included?

No, it is a separate subscription. It integrates well with the threat data, so training can target the users actually being attacked, but it is a distinct line item on the quote.

Proofpoint: What does Threat Response Auto-Pull actually do?

It removes messages from mailboxes after delivery when the verdict changes, including copies that users forwarded internally. It is the answer to the case where a link was clean at delivery and weaponised an hour later.

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