The academic messaging system of Créteil is based on the Convergence 2.0 platform, a webmail that centralizes emails, shared calendars, and address books for all staff of the academy. The address is formatted as [email protected] and the credentials are those used for I-Prof or the ARENA portal.
Setting up this messaging system on a smartphone allows for receiving communications from one’s hierarchy without relying on a desktop computer. The procedure varies slightly depending on the phone’s operating system, but the technical foundation remains the same: a reception protocol, a sending protocol, and security settings that must be correctly filled in.
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National portal or Créteil Webmail: which address to use in 2026
Since the national migration of academic messaging systems, the preferred web access goes through messagerie.education.gouv.fr. This unique portal serves all academies, including Créteil. The old URL webmel.ac-creteil.fr remains functional, but it is gradually being replaced by this centralized entry.
On a mobile browser, simply typing the national address is enough to reach your inbox. The portal automatically redirects to the Convergence interface after authentication. For those who wish to use the academic messaging system of Créteil on mobile via a dedicated app rather than the browser, manual configuration with the IMAP and SMTP servers remains the most reliable method.
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This change of URL has a practical consequence: bookmarks saved on the old webmel may stop working overnight. Updating shortcuts to the national portal avoids recurring connection errors.
IMAP and SMTP servers for the Créteil academy: technical settings
The manual configuration of an academic email account on a smartphone relies on two protocols. The first, IMAP, manages the reception of messages. The second, SMTP, manages their sending. Without these two components correctly filled in, the account will not synchronize emails.
Here are the settings to enter in your phone’s mail application:
- Incoming server (IMAP): imap.ac-creteil.fr, port 993, SSL/TLS encryption
- Outgoing server (SMTP): smtp.ac-creteil.fr, port 465, SSL/TLS encryption
- Username: your academic identifier (usually firstname.lastname, without the @ac-creteil.fr)
- Password: that of your I-Prof / ARENA account
The security type should be set to SSL/TLS for both servers. Some phones offer STARTTLS as an alternative, but SSL/TLS on port 993 (incoming) and 465 (outgoing) remains the most stable combination for Créteil.
Common error regarding the username
The most common error during setup is entering the full address ([email protected]) in the username field instead of just firstname.lastname. Depending on the applications, this detail can block authentication without an explicit error message. If the connection fails after verifying the password, this is the first parameter to correct.
Security certificates and alerts on smartphone
During the first synchronization, some devices display a warning related to the security certificate of the academic server. This message appears when the phone does not recognize the certification authority used by the National Education infrastructure.
Accepting the certificate at this stage is necessary to finalize the connection. This behavior is normal on institutional servers and does not indicate a security issue. However, if this warning reappears weeks later without reason, it may indicate a server-side change or a network problem to report to academic support.
Redirects to Gmail or Outlook: a practice on the decline
Many teachers had gotten into the habit of redirecting their academic emails to a personal Gmail or Outlook inbox. This practice is gradually being discouraged by the institution. The national policy aims to limit the leakage of professional data outside the National Education infrastructure.
In practice, automatic redirects to private inboxes can be disabled without notice. Setting up the academic account directly on one’s smartphone thus becomes the only sustainable method to check professional emails on the go.
This evolution also reinforces the role of the academic account as a unique identifier (SSO) to access all digital services: ARENA, I-Prof, educational applications. Losing access to one’s messaging or failing to check it can mean missing out on notifications related to career management.
Resolving common synchronization issues
Once the account is configured, two recurring malfunctions arise.
The first concerns synchronization stopping after a few days. On both Android and iOS, battery-saving modes can cut off the background connection of mail applications. Excluding the messaging app from the power-saving mode resolves the issue in most cases.
The second problem affects the sending of large attachments. Convergence 2.0 allows attachments up to 25 MB. However, some mobile applications impose their own lower limits. If a sending fails, checking the file size and testing the sending from the webmail via a browser helps isolate the cause.
- Check that the battery-saving mode does not affect the mail application
- Control the size of attachments (25 MB limit on the Convergence side)
- In case of forgotten password, reset it via the ARENA portal or contact academic support
The password for the academic account expires periodically. When synchronization suddenly stops and the server settings have not changed, a password renewal is often the cause. The reset is done from the ARENA portal, and the new password must then be manually updated in the account settings on the phone.