The historical Webmel service of the Nantes academy no longer exists. Since January 2026, the old portal webmel.ac-nantes.fr has been permanently disabled. Guides that still describe a connection via this address redirect to a dead page. Access to academic messaging now goes through the national messaging service of the Ministry and the portal moncompte.ac-nantes.fr.
End of Webmel Nantes: what changes concretely for the connection
The transition to the national infrastructure has modified two technical elements. The entry point is no longer a local webmail hosted by the rectorate, but a centralized service linked to the Ministry of National Education. The identifiers remain the same (format [email protected]), but the authentication path differs.
In practice, attempting to access the old URL results in either an error or a partial redirection that does not complete the authentication. We recommend deleting any bookmark pointing to webmel.ac-nantes.fr and replacing it with the new path described below.
For staff already in position before this migration, the inbox, folders, and message history have been preserved. No manual transfer action is necessary. However, filtering rules and signatures configured in the old Webmel have not always been carried over: a verification is necessary after the first connection to the new service.
A complete guide allows you to access the academic mail Nantes taking into account this new architecture, with steps adapted to the national messaging service.
Account activation on moncompte.ac-nantes.fr: steps for newcomers
Contract workers, interns, and any newly assigned personnel in the Nantes academy must activate their account before they can access their messaging. This activation is done through moncompte.ac-nantes.fr, which serves as a single identity management portal.
Prerequisites before the first connection
- Have the provisional identifier (NUMEN or temporary login) provided by the assigning institution or the DSDEN. Without this document, no activation is possible.
- Prepare a valid personal email address, which will serve as a backup address for password recovery.
- Use an up-to-date browser (Firefox, Chrome, Edge). Older versions of Internet Explorer cause certificate errors on the portal.
Step-by-step activation procedure
Go to moncompte.ac-nantes.fr, then click on “Activate my account”. The form requires the provisional identifier, date of birth, and NUMEN. After validation, the system generates a temporary password sent to the provided backup address.
Change this temporary password upon first connection. The portal requires a password of at least twelve characters, combining uppercase letters, lowercase letters, numbers, and special characters. This password will be common to the messaging and other digital services of the academy (Arena, I-Prof, LSU).
Once the activation is complete, the mailbox is accessible within a few minutes. If the delay exceeds an hour, the problem usually comes from an error in the entered NUMEN.
Connecting to academic messaging Nantes from a browser or mail client
Two access modes coexist after account activation. The choice depends on your work habits and available equipment.
Access via the national webmail
The national messaging service of the ministry works like any webmail. Log in with your full address ([email protected]) and the password set on moncompte. The interface offers email management, an integrated calendar, and a task manager.
The national webmail is the only method that requires no configuration on the used workstation. It is the preferred mode on a shared computer or in the teachers’ lounge.
IMAP configuration on Thunderbird or Outlook
For those who prefer a local mail client, the IMAP configuration remains functional. The parameters to fill in are as follows:
| Parameter | Incoming server (IMAP) | Outgoing server (SMTP) |
|---|---|---|
| Server address | imap.ac-nantes.fr | smtp.ac-nantes.fr |
| Port | 993 | 465 |
| Security | SSL/TLS | SSL/TLS |
Fill in the complete address as the username. If Thunderbird offers automatic detection, ensure that the ports match the values above before confirming.
Connection issues to academic mail Nantes: quick diagnosis
The majority of reported blocks since the migration stem from three recurring causes.
Expired password. The academy imposes periodic renewal. If the connection fails without an explicit error message, go directly to moncompte.ac-nantes.fr to reset the password via the backup address.
Account never activated. Contract workers recruited mid-year sometimes receive their assignment before the actual account creation. In this case, the moncompte portal displays “unknown identifier”. Contact the IT service of your DSDEN, which must manually trigger the account creation in the academic directory.
Security certificate rejected by the browser. This problem mainly occurs on workstations equipped with outdated operating systems or browsers whose root certificate list is no longer updated. The most reliable solution is to update the browser or use a portable version of Firefox, which includes its own certificate chain.
For any other persistent block, academic support can be reached via the contact form available on the Nantes rectorate’s website. Prepare your NUMEN and a screenshot of the error message to expedite the processing of your request.