The Convergence webmail is the professional messaging service provided to the staff of the Lyon academy. It is based on a web interface accessible from any browser, without prior installation, at the address webmail.ac-lyon.fr. Beyond simple email reading, Convergence provides access to a shared calendar, an institutional address book, and several internal applications related to academic services.
Convergence: a unified portal, not just a simple webmail
Most guides limit themselves to describing Convergence as an inbox. In practice, the tool functions as a single entry point to multiple business services. A single authentication with the academic account opens the messaging, the shared calendar among colleagues, and the institution’s address book.
This single sign-on avoids the need to re-enter credentials each time switching from one tool to another. For teachers juggling schedules, emails from management, and institutional convocations, the time savings on a daily basis are real.
There is also a second, lesser-known access point: the national portal messagerie.education.gouv.fr. This service, now in production, accepts the same academic credentials. An agent from the Lyon academy can therefore access the Convergence webmail of the Lyon academy from the local address or go through the national portal, depending on what suits them best.

Connecting to the Lyon academic webmail: credentials and password
Connection is made from a browser by entering the address https://webmail.ac-lyon.fr. The form requires two elements: the username and the password, both provided by mail upon opening the electronic mailbox.
Retrieve your username or reset your password
The login page offers help links directly below the form. In case of a forgotten username, the first link allows recovery. The second initiates a password reset procedure.
Without these academic credentials, no access is possible, neither on Convergence nor on the national portal. Keep the notification letter or save this information in a password manager from the first connection.
IMAP and SMTP configuration for an email client
Checking emails only via the browser is not always practical. Configuring an email client (Outlook, Thunderbird, smartphone Mail app) allows for centralizing multiple accounts and receiving real-time notifications.
Incoming IMAP server settings
The IMAP protocol synchronizes messages between the server and the client. Emails remain stored on the academic server, allowing the same state of the inbox to be retrieved from multiple devices.
- Incoming server: enter the IMAP address provided by the IT department of the Lyon academy (usually indicated in the notification letter or on the academic intranet)
- Port: the secure SSL/TLS port dedicated to the IMAP protocol
- Username: the full academic identifier, as it appears on the notification letter
- Authentication: normal password, the same as used on webmail.ac-lyon.fr
Outgoing SMTP server settings
The SMTP protocol manages the sending of messages. Without correct configuration of this server, reception works but sending fails, which often causes confusion.
- Outgoing server: the academic SMTP address, distinct from the IMAP server
- Port: the corresponding secure port (SSL/TLS or STARTTLS depending on the configuration)
- Authentication required: yes, with the same credentials as for the incoming server
- Security certificate: accept the certificate offered during the first connection to establish encryption
On both Android and iOS, the procedure follows the same pattern: add an account, choose the type “Other” or “IMAP,” then fill in the fields one by one. The most common error remains a typo in the server address or forgetting authentication on the outgoing server.

Security certificates and common connection errors
During the first configuration on an email client, an alert related to security certificates frequently appears. The client indicates that the server’s certificate is not recognized or does not match the entered domain name.
This alert does not mean that the connection is compromised. It simply indicates that the certificate issued by the academic infrastructure is not pre-installed in the operating system’s trust list. Accepting this certificate manually is sufficient in most cases.
When the problem lies elsewhere
If the connection fails despite correct settings, several avenues merit verification. An institutional firewall may block the IMAP or SMTP ports. An expired password (periodic renewal policy imposed by the academy) also causes a silent rejection. Testing the connection first on webmail.ac-lyon.fr from a browser allows for quickly isolating a password issue from a client configuration issue.
Checking your credentials on the webmail before modifying the client configuration saves considerable time. If the webmail works, the issue lies in the software settings, not on the server side.
The dual option of accessing either webmail.ac-lyon.fr or messagerie.education.gouv.fr provides a valuable safety net: if one of the two portals undergoes maintenance, the other remains available to check messages in the meantime.



