The academic messaging system Aix-Marseille has been experiencing a wave of blockages since the national migration to Zimbra, which are not simply due to forgotten passwords. The gradual switch to messagerie.education.gouv.fr changes access URLs, authentication protocols, and the management of application passwords. Here, we detail the technical points to check to restore access without going through support.
Zimbra application password: the hidden cause of IMAP blockages
The webmail connection works, but the mobile app or desktop client (Thunderbird, Outlook) rejects the credentials. This scenario is the most common since the deployment of the national messaging system.
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On the Zimbra platform, connections from an external mail client no longer work reliably with the usual agent password. You need to generate a dedicated application password from the webmail, in Preferences, then Secure Passwords, then Create an application password.
This generated password replaces the standard identifier only in the IMAP and SMTP settings of the mail client. The main password remains valid for web login. We recommend noting this application password in a secure manager, as it is displayed only once during its creation.
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When a connection issue with Aix-Marseille messaging occurs exclusively on a smartphone or desktop software, it is almost always this step that is missing. Checking the webmail connection first allows for immediate isolation of the cause.
Migration to messagerie.education.gouv.fr: check the URL before any diagnosis
The old academic URL (like webmel.ac-aix-marseille.fr or convergence) is increasingly less likely to redirect to the new platform. If your account has been switched to the national infrastructure, the address to use is now messagerie.education.gouv.fr.
The switch does not always come with a clear notification. We observe that many agents continue to use the old favorite saved in their browser, receive an error or a blank page, and conclude that there is a failure.
Checks to perform after the switch
- Test the connection directly on messagerie.education.gouv.fr with your usual academic credentials ([email protected]).
- Clear the browser cache and cookies, as the old authentication token may cause a redirection loop.
- Check that the browser has not saved an old password via autofill, which leads to a silent rejection on the server side.
If the connection succeeds on the new platform, the problem is resolved. It remains to update the IMAP/SMTP settings on each manually configured device.
IMAP and SMTP server settings for Aix-Marseille academic messaging
Reconfiguring mail clients after migration requires knowing the correct server settings. The IMAP server uses port 993 with SSL/TLS encryption (IMAPS protocol). The outgoing SMTP server uses port 465 or 587 depending on the client, also in SSL/TLS.
The identifier remains the full academic address. The password to enter is the application password generated in Zimbra, not the main password.
Common errors during setup
Configuring the IMAP port to 143 (unencrypted) instead of 993 results in an immediate rejection. Similarly, using STARTTLS instead of SSL/TLS on port 993 silently fails on some Android clients.
On Thunderbird, the automatic configuration detection does not always recognize the domain ac-aix-marseille.fr after migration. You must force the manual entry of server settings. On Outlook, disabling modern authentication (OAuth) and forcing simple password authentication resolves most connection refusals.
Academic messaging connection on mobile: Android and iOS configurations
On iOS (native Mail or Outlook), add an account of type “Other” or “IMAP” and not “Exchange.” Choosing Exchange triggers an automatic ActiveSync discovery attempt that systematically fails with the academic messaging system.
On Android, the Gmail app correctly handles IMAP as long as you select “Other” when adding the account. The fields to fill in:
- Incoming IMAP server: the address provided by the national platform, port 993, SSL/TLS security.
- Outgoing SMTP server: same server domain, port 465 in SSL/TLS or 587 in STARTTLS depending on the application.
- Identifier: full academic address. Password: Zimbra application password only.
A recurring pitfall on Android concerns folder synchronization. By default, only the inbox synchronizes. Sent, drafts, and trash folders must be manually mapped in the account settings to restore full functionality.
Resetting the academic password and accessing ENT
The password reset procedure goes through the academy’s authentication portal, not through the webmail itself. If the login page displays “incorrect credentials” while the password is recent, you need to check that the account has not been locked after several failed attempts.
The temporary lock usually lasts a few minutes. In case of prolonged blocking, the reset is done via the “forgot password” link on the academic authentication portal, which sends a reset link to the backup address provided when the account was created.
Without a configured backup address, self-resetting is impossible and requires direct contact with the institution’s IT service or the academic DSI.
The transition to the national Zimbra messaging system has profoundly changed the login habits of the Aix-Marseille academy staff. Most current blockages can be resolved by checking three elements: the connection URL, the application password for IMAP clients, and the port and encryption settings. Updating these three points on each device is sufficient in the vast majority of cases to restore stable access.