MS-203 · ● Retired · Associate · Microsoft
Retirement Status: This certification was retired on December 31, 2023. No new candidates can take the exam or earn the certification. However, certifications already earned remain valid on transcripts for at least two years after retirement. Microsoft has not released a direct replacement for this certification.
Exam facts
| Field | Value |
|---|---|
| Cost | $165 USD |
| Duration | 120 minutes |
| Questions | 40–60 (scored) |
| Passing | 700/1000 scaled |
| Format | Multiple choice, multiple response, lab scenarios |
| Delivery | Pearson VUE, OnVUE (online proctored) |
| Languages | English, Japanese, Chinese (Simplified), Korean, German, French, Spanish, Portuguese (Brazil), Chinese (Traditional), Italian |
| Valid | 3 years (when active) |
| Renewal | CE credits or retake (when active; no longer applicable) |
| Prerequisites | None formal; Exchange Online / Microsoft 365 experience recommended |
| Released | 2019 |
| Retiring | December 31, 2023 |
Vendor source — Microsoft Learn: Exam MS-203 ↗
Official exam guide — Study guide for Exam MS-203: Microsoft 365 Messaging ↗
Exam objectives — Exam MS-203 Skills Measured ↗
About
MS-203 was a Microsoft Associate-level certification for messaging administrators managing Microsoft Exchange Online and Microsoft 365 email infrastructure. Launched in 2019, it validated the ability to deploy, configure, secure, and maintain enterprise messaging environments in hybrid and cloud settings. The certification was retired December 31, 2023, with no direct replacement announced by Microsoft. Professionals already holding the certification may still list it on resumes and transcripts for two years post-retirement; those seeking current messaging credentials should explore Microsoft 365 enterprise administration alternatives or domain-specific certifications in identity, security, or cloud administration.
Domain context — Email & Microsoft 365
Enterprise email administration, messaging security, transport architecture, and collaboration platform management using Microsoft Exchange Online, Outlook, and Microsoft 365 services.
Read full deep dive — Microsoft 365 Ecosystem →
Topics covered
The exam blueprint measured the following technical competencies:
-
Manage Microsoft Exchange Online settings and resources (40–45%)
- Manage recipients, mailboxes, groups, resources, and public folders
- Configure client access settings and mobile device access
- Implement address book policies and offline address books
- Manage organizational settings and compliance
-
Plan and manage mail transport architecture (35–40%)
- Configure domains and connectors
- Manage mail flow and transport rules
- Implement journaling and message tracking
- Design hybrid messaging scenarios
-
Plan and implement a hybrid configuration and migration (10–15%)
- Prepare on-premises Exchange for hybrid
- Manage organization relationships and free/busy data
- Plan mailbox migrations to Exchange Online
- Manage coexistence and federation
-
Secure the messaging environment (10–15%)
- Configure threat protection and antimalware policies
- Implement anti-spam and content filtering
- Manage data loss prevention (DLP)
- Implement Azure Information Protection
Source: Official exam guide PDF ↗
Common skills at Email & M365 · Associate
Shared competencies for the email / messaging domain at Associate level — not specific to MS-203.
- Recipient management (mailboxes, groups, distribution lists, contacts)
- Mail flow configuration and troubleshooting
- Transport rule design and implementation
- Hybrid Exchange deployment and coexistence
- Mobile device management and Outlook client policies
- Email security (antispam, antimalware, DLP)
- User compliance and retention policies
- Basic scripting with Exchange Management Shell
Recommended courses at Email & M365 · Associate
| Provider | Title | Cost | URL |
|---|---|---|---|
| Microsoft Learn | MS-203T00: Microsoft 365 Messaging (official instructor-led) | $X (varies by region) | ↗ |
| Microsoft Learn | Microsoft 365 Messaging learning path | Free | ↗ |
| Pluralsight | Microsoft Exchange Online Administration | Subscription | ↗ |
| Udemy | Exam MS-203: Microsoft 365 Messaging Administrator Associate | $X–$Y | ↗ |
| CBT Nuggets | Messaging Administrator Associate (MS-203) | Subscription | ↗ |
Note: The official Microsoft course (MS-203T00) was retired along with the exam on December 29, 2023. These resources remain available for reference but do not prepare for the retirement exam. Learners should verify current course availability before enrolling.
Practice exams
| Provider | Title | Cost | URL |
|---|---|---|---|
| MeasureUp | MS-203: Microsoft 365 Messaging (Official Microsoft Practice Test) | $X | ↗ |
| Mindhub / Pearson Vue | MS-203: Microsoft 365 Messaging Certification Practice Test | $X | ↗ |
Note: Practice exams are archived; verify availability before purchase, as the certification is retired.
Books
| Title | Author | Publisher | Year | ISBN | URL |
|---|---|---|---|---|---|
| Microsoft Certified Exam Guide: Messaging Administrator Associate (MS-203 and MS-200201) | Cybellium Ltd, Kris Hermans | Independently published | 2022 | 978-1687097193 | ↗ |
| Exam MS-203: Microsoft 365 Messaging Study Guide | Sterling Winters | Medium (article series) | 2021 | N/A | ↗ |
Note: No major traditional publisher (Sybex, Pearson Certification, O'Reilly) released an official study guide for MS-203. The Cybellium/Hermans book is community-authored and independently published. Sterling Winters' Medium series is a free online resource.
Typical job titles at Email & M365 · Associate
Exchange Administrator · Messaging Administrator · Email Engineer · M365 Email Administrator · Cloud Collaboration Engineer · Exchange Engineer
(Job titles drawn from current job-board postings and Glassdoor/LinkedIn profiles; roles requiring or preferring MS-203 certification typically require 2–5 years of messaging infrastructure experience.)
Salary
| Region | Range | Source |
|---|---|---|
| USD | $82,000 – $155,000 | Glassdoor ↗ · ZipRecruiter ↗ · PayScale ↗ |
| ZAR | R220,000 – R310,000 | PayScale ZA ↗ |
| GBP | £36,000 – £54,000 | PayScale UK ↗ · Glassdoor UK ↗ |
| EUR | €45,000 – €65,000 (DE/NL) | PayScale EU ↗ |
Salary note: These ranges reflect roles that list Exchange / M365 messaging administration as a primary responsibility. Salary varies significantly by experience, employer size, region, and whether the role includes hybrid/on-premises Exchange responsibilities. Entry-level roles start ~$60k USD; senior roles (5+ years) reach $120k+ USD.
Skills validated
Technical capabilities measured by the MS-203 exam.
- Exchange Online administration and PowerShell scripting
- Recipient and group management
- Mail flow and transport rule configuration
- Mobile device policy and Outlook client management
- Hybrid Exchange deployment and migrations
- Email security (threat protection, DLP, anti-spam/antimalware)
- Compliance, retention, and journaling policies
- Free/busy and federation in hybrid scenarios
- Address book policies and address lists
Related certifications
- Aligns with: Microsoft 365 Administrator Expert (MS-102) ↗ (broader M365 admin scope, current replacement pathway)
- Prerequisite foundation: Microsoft 365 Fundamentals (MS-900) ↗
- Cross-vendor equivalent: Cisco Certified Network Associate (CCNA) — messaging specialization; CompTIA Network+ (general networking foundation for hybrid messaging)
- Replaces: MS-200 (Planning and Configuring a Messaging Platform, also retired)
- No direct successor: Microsoft has not announced a purpose-built replacement for MS-203. Professionals should pursue MS-102 (Microsoft 365 Administrator Expert) or domain-specific certifications (e.g., security, identity, cloud infrastructure).
- Vendor overview: Microsoft Vendor Overview ↗
Sources
- Microsoft Learn: Exam MS-203 ↗
- Study guide for Exam MS-203: Microsoft 365 Messaging ↗
- Exam MS-203 Skills Measured PDF ↗
- Microsoft 365 Certification and Exam Updates ↗
- MS-203 Retirement Announcement ↗
- MeasureUp MS-203 Practice Test ↗
- Mindhub / Pearson Vue Practice Test ↗
- Cybellium/Hermans MS-203 Exam Guide ↗
- Sterling Winters Medium Study Guide ↗
- Glassdoor Exchange Administrator Salary ↗
- ZipRecruiter Exchange Administrator Salary ↗
- PayScale US Exchange Administrator ↗
- PayScale ZA Exchange Administrator ↗
- PayScale UK Exchange Administrator ↗
Last verified: 2026-05-01
Parent ecosystem: Microsoft 365 Ecosystem
Parent domain: Email & Microsoft 365
Vendor overview: Microsoft Vendor Overview