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ZDV Webmail Mainz: Secure Access to Your JGU Email Portal

Quick Summary

  • JGU account required for access.
  • Access via mail.uni-mainz.de.
  • Avoid third-party Outlook app.
  • Online password reset available.
  • ZDV Hotline provides support.

Welcome to the ZDV Webmail portal for Johannes Gutenberg University Mainz (JGU). This digital portal serves as your primary hub for all official university correspondence, offering a convenient way to manage your email communications. Designed for students, faculty, and staff, the webmail interface ensures that you stay connected and informed within the JGU community. Through this platform, you can send and receive emails, manage your contacts, and access your mailbox from virtually anywhere with an internet connection. The ZDV (Zentrum fΓΌr Datenverarbeitung) provides this robust service, integrating it seamlessly with your JGU Account to offer a unified online account management experience. This guide will walk you through everything you need to know to effectively utilize your ZDV Webmail.

Gaining Access: Your JGU Account and Initial Setup

Navigating Your Digital Mailbox: A Seamless Login Experience

  1. Open your preferred web browser and navigate to the official ZDV Webmail portal at https://mail.uni-mainz.de/.
  2. On the login page, enter your JGU Account username and your associated password into the respective fields.
  3. Click the Login or Anmelden button to access your digital mailbox.

Exploring Your Inbox: Communication and Collaboration Tools

When Your Digital Mailbox Won't Open: Solutions for Access Issues

⚠️ Access blocked due to forgotten password

Cause: The user cannot recall their JGU Account password.

Solution: If you've forgotten your password, navigate to the password reset page at https://account.uni-mainz.de/password/init-reset/. You'll need to enter your login name, a private email address, and your matriculation or registration number for identification. A reset link, valid for 60 minutes, will be sent to your private email. If you have an old PUK, you might use https://account.uni-mainz.de/password/reset/. If you lack a PUK, visit the Central Library's circulation desk with a photo ID and your JGU username to obtain one.

⚠️ Problems with the Microsoft Outlook mobile application

Cause: The official Microsoft Outlook app is blocked by JGU due to data privacy policies that conflict with the university's standards, as it routes data through external servers.

Solution: We know being locked out is stressful. To resolve this, avoid using the official Microsoft Outlook app. Instead, use the pre-installed email application on your Android or iOS device and configure your JGU email account there as an Exchange account. This ensures compliance with data protection policies.

⚠️ Emails not sending or delayed when sending to many recipients

Cause: The email client may be closing before all emails in the outbox are fully processed, or exceeding sending limits.

Solution: Ensure your email program remains open until all messages in the outbox have been successfully processed and sent. Also, be mindful of the sending limits: a maximum of 1,000 recipients per day and 100 emails per minute. For broad communications, consider using university mailing lists.

⚠️ Unable to send large files as email attachments

Cause: Email attachment size exceeds the system's limit.

Solution: The maximum size for an email attachment is 24 MB. If your file is larger, you should upload it to Seafile and share a link to the file instead of attaching it directly to your email.

Fortifying Your Correspondence: Keeping Your Account Secure

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🎧 Official Support & Help Center

For assistance, contact the ZDV Hotline: * Email: [email protected] (Please use your JGU account if possible) * Phone: Within JGU: 26316, External: +49 6131 39 26316 * On-site Support: Room 00 151, ground floor, Faculty of Natural Sciences (NatFak), Johann-Joachim-Becher-Weg 21, Mainz. * Opening Hours (as of 2026): Monday to Thursday from 9:00 AM to 5:00 PM, and Friday from 9:00 AM to 3:00 PM.

Quick Answers to Your ZDV Webmail Inquiries

Q: What is my university email address format at JGU Mainz?

Your JGU Mainz email address will typically be in the format of [email protected] or, for students, [email protected]. You can view and manage this via the JGU Account portal.

Q: Can I use the Microsoft Outlook app for my JGU Mainz email on my phone?

No, the official Microsoft Outlook app is explicitly blocked by Johannes Gutenberg University Mainz due to concerns about data privacy. It routes email traffic and other data through external Microsoft servers, which conflicts with JGU's data protection policies. Instead, you should use your device's pre-installed email application and configure your account as an Exchange account.

Q: How large can my email attachments be for ZDV Webmail?

The maximum size for an individual email attachment is 24 MB. If you need to send larger files, the ZDV recommends using Seafile to share them securely.

Q: Is automatic email forwarding possible from my JGU Mainz email to a private email address?

No, the automatic forwarding of emails from your JGU Mainz account to external or private email addresses is deactivated for security and data integrity reasons.

Q: Where can I manage my JGU account settings and alternative email addresses?

You can manage all aspects of your JGU Account, including viewing your primary email address and setting up any additional alternative addresses, by visiting https://account.uni-mainz.de/.

Wrap Up

The ZDV Webmail service at Johannes Gutenberg University Mainz is a vital digital portal for all members of the university community. By adhering to the guidelines for login, mobile setup, and security, you can ensure a smooth and protected email experience. Should you encounter any challenges, the ZDV Hotline is readily available with expert support to help you navigate your digital communications efficiently.

PS

Portal Support Team

This guide was reviewed and verified by our internal technical support experts in October 2026. We constantly monitor official portal updates to ensure you have the most accurate and secure login instructions.