How to Send Fillable PDFs via MaaS360 Email App on iOS
Question details
The user wants to automatically route fillable PDF submissions through the MaaS360 email app instead of the native iOS Mail app.

- Product
- PDF on iOS
- Device & OS
- iOS
- Scenario
- Submitting a completed PDF form within a managed enterprise environment using the MaaS360 mail application.
- Observed behavior
- Clicking the PDF's Submit button forcibly opens the native iOS Mail app, which lacks a configured email profile, causing the submission to fail.
Ensure you have the latest version of the MaaS360 app installed on your iOS device and confirm with your IT administrator that external file sharing is permitted under your organization's Mobile Device Management (MDM) policies.
Manually Share via the iOS 'Open In' Feature
Since iOS restricts overriding the native Mail app for embedded PDF mailto links, manually sharing the saved document is the most immediate and reliable workaround.
Apple's iOS system generally does not allow a PDF form's native 'Submit' action to automatically bypass the system mail composer and launch a specific third-party managed email application.
After filling out the required form fields in your PDF reader, save the document locally on your iOS device.
Tap the 'Share' icon (a square with an upward-pointing arrow) or look for an 'Open In' option within your PDF application.
Scroll through the list of available applications in the iOS Share Sheet and select the MaaS360 Email app to draft a new message with your completed PDF attached.

Implement Managed Web Submission Processes
Organizations can bypass local mobile email client limitations entirely by shifting the form submission to a web-based portal.
Fill and Share PDFs Seamlessly with WPS Office
WPS Office provides robust PDF tools for iOS, allowing you to easily fill out forms, manage documents, and securely share them to any installed third-party enterprise email app, including MaaS360.
- 1. Open PDF in WPS Office: Launch the WPS Office app on your iOS device and open your fillable PDF form.
- 2. Fill the Form: Tap on the specific form fields to enter your data, or use the built-in annotation tools to add secure signatures.
- 3. Access Sharing Options: Tap the 'Share' button located in the bottom navigation menu after saving your changes.
- 4. Send via MaaS360: Select 'More App' or 'Send File' from the menu, then choose the MaaS360 email app from the iOS share sheet to send the completed file.

Frequently Asked Questions
Can I change the default email app on iOS to MaaS360?
While modern versions of iOS allow users to change the default email app for standard web links, enterprise managed apps like MaaS360 often cannot intercept embedded PDF 'Submit' actions, which are hardcoded to trigger the native system mail composer.
Why does the PDF 'Submit' button only open Apple Mail?
The 'Submit' action embedded in standard PDFs is programmed to trigger the native OS mail composer. On iOS devices, this defaults to Apple Mail and generally ignores third-party managed email profiles.
How can administrators prevent users from seeing the Apple Mail prompt?
To avoid user confusion in a managed environment where Apple Mail is blocked via ActiveSync, IT administrators should remove the embedded PDF 'Submit' button during document creation and instruct users to share the saved file manually via the Share Sheet.




