You have just received your academic credentials and your @ac-creteil.fr address is listed on your job sheet. The first connection to the Créteil webmail often raises the same questions: which portal to use, how to find your username, what settings to apply on your phone. Here are the concrete guidelines to make this messaging system operational from the very first days.
Academic portal or national portal: which address to use for Créteil webmail
Most tutorials refer to the historical address webmel.ac-creteil.fr. It still works, but a national URL messagerie.education.gouv.fr has been put into service and a gradual migration is underway.
In practice, both portals lead to the same inbox. Your address remains @ac-creteil.fr, and your password does not change. The difference lies in the interface: the national portal offers a unified presentation across academies, while the academic portal retains the ergonomics that colleagues who have been in position for several years are familiar with.
For a new holder, the simplest approach is to test both and bookmark the one that works best. If you want to access the Créteil academy webmail with a step-by-step guide, a detailed walkthrough exists for each step of the first connection.
Academic username and password: the pitfalls of the first connection

Your messaging username takes the form of pnom (initial of the first name followed by the last name, sometimes completed by a number). It does not correspond to your full email address: you type “pnom” in the username field, not “[email protected]”.
Have you already searched for your username without finding it? The NUMEN is the key. By default, the initial password for your academic account is your NUMEN. If you do not know it, the administration of your institution or your managing service are the only ones authorized to provide it to you.
Finding your username online
The Créteil academy provides a dedicated page at identifiant.ac-creteil.fr. The procedure requires your NUMEN and your date of birth. After validation, the page displays your last name, first name, username, and email address.
Changing the default password
Keeping the NUMEN as your password is a bad idea: this number appears on several administrative documents. Change it as soon as you log in for the first time via the identity management portal. Keep in mind that this password is also the one that gives access to Arena and the I-Prof space. A single change applies everywhere.
The academy may impose periodic renewal. If your session expires unexpectedly after several weeks of use, it is often because this deadline has passed.
Configuring academic messaging on smartphone with the correct IMAP and SMTP settings
The webmail is sufficient from a browser, but checking your professional emails on an Android or iOS phone requires manual configuration. Here are the settings to enter in the Mail app or in a client like Outlook Mobile:
- IMAP Incoming Server: imap.ac-creteil.fr, port 993, SSL/TLS encryption. The IMAP protocol synchronizes messages across all your devices, which prevents finding a read email on the phone but marked as unread on the computer.
- SMTP Outgoing Server: smtp.ac-creteil.fr, port 465 or 587, SSL/TLS encryption. Authentication uses the same username and password as the webmail.
- Username: your short username (pnom), not the full address. This is the most common mistake on Android, where the field defaults to the full email address.
On iOS, adding is done in Settings, then Mail, then Accounts. On Android, the path varies by manufacturer, but the principle remains the same: choose “Other” or “IMAP” rather than the automatic Google or Microsoft configurations, which do not recognize the domain ac-creteil.fr.

Recent security restrictions on @ac-creteil.fr accounts
Why talk about security from the start? Because some habits taken with a personal messaging system do not work with an academic account, and it is better to know this before wasting time.
Automatic forwarding to personal Gmail or Outlook accounts has been disabled since mid-2025 for accounts of the Créteil academy. The goal is to protect professional data. Configuring a forwarding rule to your personal inbox will have no effect.
Partial restrictions on POP and IMAP access are also reported. If your email client refuses to connect despite correct settings, contact your institution’s IT department to verify that the IMAP protocol is indeed activated on your account.
Best practices for a professional account
- Do not store sensitive documents as attachments in the inbox. Use the designated academic storage space for this purpose.
- Create thematic folders (administration, pedagogy, parents) from the first week. A saturated inbox quickly becomes unmanageable during class council periods.
- Check your email signature: name, position, institution. This signature will be read by families and institutional partners.
The Créteil webmail remains a simple but functional tool. The majority of issues arise from a wrongly entered username or an expired password, not from a technical problem on the server side. In case of persistent difficulty, the academic IT department is the right contact, well before public forums that mix procedures between academies.



