Contact MainframeMaster
Reach the people behind the COBOL and mainframe tutorials when you need a correction, a topic suggestion, or help with the site.
Write to contact@mainframemaster.com. That inbox is the right place for content errors, missing topics, partnership inquiries, and account questions tied to MainframeMaster.
We read every message. Replies usually go out within a few business days. If you are stuck on a tutorial concept, posting in the forum often gets a faster answer from other learners and practitioners.
What to include
For a content fix, send the page URL, what looks wrong, and what you expected. For a new topic request, name the technology (COBOL, JCL, CICS, DB2, and so on) and the skill level you need covered. For job board or account issues, include the relevant listing URL or the email on the account.
Other pages
Learn who we are on the About page. Privacy practices are documented in the Privacy Policy. Agents can start from llms.txt for a curated map of tutorials and site pages.