Marketo Release Notes | 2025-07

What do the 2025-07 Marketo updates really mean for your team?

We break down what matters, what to act on, and where it impacts your marketing operations.

Features

• Email Designer – GenStudio Integration: Integrate GenStudio for performance marketing from within emails to enhance marketing efficiency and to maintain brand consistency. GenStudio Integration for Marketo Engage
• Email Designer – Custom CSS: When designing emails, you can now add your own custom CSS directly within the Email Designer. Add custom CSS to your email content
• Email Designer – Detect Spam with SpamAssassin: Using SpamAssassin in Marketo Engage, you can test your email content and see the likelihood of ISPs/Mailbox providers marking it as spam. Email spam report
• Email Designer – Support of Moving Assets and Program Deletion: Quickly relocate an email asset across programs. You can now also delete programs that contain new designer email assets.
• Email Designer – Firefox Support: The Email Designer is now fully supported in Mozilla Firefox. For the best experience, always keep your browser up to date.
• Email Designer – Simulate Content from the Properties Page: Simulate content for email assets from Email Properties without having to go back into the editing screen.
• Email Designer – Role-based Access Control for Assets: The May release saw Role-based Access Control (RBAC) implemented for Edit, Approve, and Delete permissions. Read permissions are now available with this release.
• Email Designer – Edit Email Properties for Published Emails: Make edits in Email Properties even after the email is published.
• Email Designer – Select Branding Domain and Domain IP Configuration: You can now select a “Branding domain” and “Domain IP configuration” for every email asset.
• REST API Error Code Notification Updates: Two additional classes of REST API error in in-app notifications have been added: 606 – Max Rate Limit Exceeded and 607 – Daily Quota Reached.
• Display Program Member Standard Fields in Field Management: Both standard and custom program member fields in Field Management are now visible.
• REST API Names in Field Management: This update allows admins to see REST API field names without having to export the list.
• Munchkin Cookies and ECIDs are Viewable: You can now see a list of Munchkin cookie and ECID (Experience Cloud Identity) numbers in the _Info_ tab of a Person Details Page, reducing the dependence on API calls to obtain that information.

Announcements

• Marketo Engage Identity End of Life: In August 2025, Adobe will begin phasing out support for Marketo Engage Identity (logging in via login.marketo.com). To prevent interrupted access to Marketo Engage, you must transition to Adobe Identity no later than September 30, 2025.

  • IP Restrictions Deprecation: Support for Restricting Marketo Logins Based on IP will end on July 30, 2025. The feature will remain operational until the transition to Adobe Identity is complete. A new location-based access control feature for Adobe Identity in the Adobe Admin Console is targeted for the August 2025 release.

  • Single Sign-On (SSO) Deprecation: Support for Marketo Identity SSO will end on July 30, 2025. The feature will remain operational until the transition to Adobe Identity is complete. Single Sign-On for Adobe Identity in the Adobe Admin Console must be configured separately. For setup steps, see Set up identity and Single Sign-On.

What this means for you and your team

Email Designer is becoming more operationally useful. Custom CSS, brand/domain controls, published-email edits, asset moves, and better simulation reduce workarounds and rework. This helps teams scale email production across regions or business units, but it also increases governance pressure: you’ll need tighter review, naming, and versioning discipline to avoid brand or deliverability drift.

GenStudio integration is the most strategic change here. If you’re already using Adobe’s broader content tools, this can shorten the path from campaign concept to production and improve consistency. The value depends on your process maturity; without clear content ownership and approval flow, it just adds another layer of tooling instead of real speed.

SpamAssassin testing and per-asset branding/IP settings are practical wins. They should help catch deliverability issues earlier and support segmented sending models. Useful for teams managing multiple sender domains, but not a substitute for proper list hygiene, authentication, and inbox monitoring.

RBAC, field visibility, and REST field names improve admin efficiency. These are incremental but valuable for maintaining larger instances. They reduce lookup work, support cleaner audits, and make field governance easier. Expect modest productivity gains rather than transformation.

Viewing Munchkin cookies and ECIDs in Person Details lowers API dependence. That’s useful for troubleshooting identity and cross-system matching, especially in fragmented stacks. It won’t solve data architecture problems, but it can speed investigations and reduce technical bottlenecks.

The identity migration announcement is the highest-risk item. Marketo Identity, IP restrictions, and Marketo SSO are being phased out, so access management needs immediate planning. If you delay, you risk login disruption and rushed security changes. Treat this as a migration project, not an admin task.

Net: the release is more about operational cleanup than breakthrough capability. The real value is in simplifying production, strengthening governance, and preparing for Adobe Identity. If your instance is already complex, that’s meaningful; if not, several updates will feel incremental.