The professional messaging system for teachers in the Caen academy has undergone a major change with the merger of the Normandy academies. The @ac-caen.fr address, long a unique entry point, now redirects to the unified domain @ac-normandie.fr. This switch generates recurring connection errors, often related to outdated URLs or accounts in the process of migration.
Old domain ac-caen.fr and new portal ac-normandie.fr: what has changed
The creation of the Normandy academic region has led to the gradual merging of the messaging systems of Caen and Rouen. The old mailboxes @ac-caen.fr and @ac-rouen.fr are integrated under a unified domain @ac-normandie.fr, with a common entry point via the Professional Space of the Normandy academic portal.
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In practice, teachers who continue to use the old Caen webmail URLs encounter error pages or poorly configured redirects. The reflex to adopt is to systematically go through the Normandy portal, accessible from the site ac-normandie.fr, under the Professional Space section.
| Element | Before (ac-caen.fr) | After (ac-normandie.fr) |
|---|---|---|
| Mail domain | [email protected] | [email protected] |
| Webmail access point | Dedicated Caen Webmail | Unified Professional Space Portal Normandy |
| Authentication | Caen academy credentials | Normandy academy credentials (unified portal) |
| Redirect from old address | – | Active, but unstable on some accounts in migration |
The redirection of old messages to the new mailbox works for the majority of accounts. However, some teachers report delays or occasional losses, particularly when the migration of their account is not finalized on the server side.
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For teachers configuring their Caen academic mailbox on a heavy client like Thunderbird, the IMAP and SMTP settings must point to the Normandy servers and no longer to those of Caen, otherwise they will receive looping authentication errors.
Connection diagnosis: the three most common causes of failure
Before contacting academic support, three quick checks can resolve the vast majority of blockages.
- Outdated URL saved as a favorite: the browser still points to the old Caen webmail. Deleting the favorite and reconnecting via the ac-normandie.fr portal eliminates this problem immediately.
- Account in migration: some accounts have not yet switched on the server side. The typical error message mentions authentication denied despite correct credentials. The only solution is to wait for the migration to finish or to contact the support platform.
- NUMEN not provided or password expired: resetting the password generally requires having one’s NUMEN. Teachers who have never used it must find it on their appointment decree or request it from their departmental DSDEN (Calvados, Manche, Orne).
The most effective reflex remains to test the connection from the Normandy academic portal in a private browsing window. If the connection succeeds in private browsing but fails in normal mode, the problem lies with the browser’s cache or cookies.
Configure Thunderbird or a mail client with the Normandy servers
The academic webmail is sufficient for occasional consultation. For daily use, configuring a mail client like Thunderbird offers significantly greater comfort: real-time notifications, offline management, automatic folder sorting.
Connection settings to use
The incoming and outgoing servers are those of the Normandy academy. The identifier corresponds to the format firstname.lastname (without the domain). The recommended protocol is IMAP with SSL/TLS encryption, which synchronizes folders between the client and the server, unlike POP3 which downloads and then deletes messages from the server.
In case of failure during the automatic configuration of Thunderbird, manually entering the server settings resolves the issue in most cases. The standard IMAP port with SSL is 993, and the SMTP port with STARTTLS is 587.
Common error on old Thunderbird profiles
Teachers who had already configured a Thunderbird profile with the ac-caen.fr servers must modify the incoming and outgoing server fields. Creating a new profile instead of modifying the old one avoids certificate conflicts and authentication loops that Thunderbird poorly manages when changing servers on an existing profile.
Services accessible from the Normandy academic intranet portal
The messaging system is just one of the tools available via the portal. Single sign-on (SSO) provides access, with the same credentials, to several services useful on a daily basis.
- I-Prof: consultation of the administrative file, career management, transfer requests
- ONDE (Digital Tool for School Management): student management for primary school directors
- Applications for managing grades and absences specific to each institution
- Collaborative spaces and academic mailing lists
Access to these services from outside the institution goes through the same authentication portal. Teachers connecting from a personal device (smartphone, tablet) can use the mobile browser without additional installation.
The security of personal data remains a sensitive issue. The academic portal complies with GDPR requirements, but using a password distinct from that of personal accounts limits risks in case of compromise. The recovery procedure via NUMEN protects against impersonation attempts, provided that this number remains confidential.
The transition to the domain ac-normandie.fr has simplified the technical architecture, but the transition remains incomplete for some accounts. Keeping one’s NUMEN accessible and updating login favorites are the two actions that prevent the majority of blockages reported since the merger.