BusinessMail X.400

BusinessMail X.400 Service

Here you will find instructions, manuals, order forms and the latest technical information about BusinessMail X.400. Please also visit us on the business
customer portal of Telekom Germany GmbH.

Call us on 0800 5 229 230 or send an email to:
helpdesk.businessMailX400@telekom.de. From abroad, please dial the following number: +4962154547900.

BusinessMail X.400

Replacement of Secure P7 server certificate on March 31, 2026, at 10:10 a.m. CEST

On March 31, 2026, at approx. 10:10 a.m. CEST the server certificate of securep7.telebox400.de (Secure P7 access via Internet, default access using port 5432 and alternative access using port 5438) will be replaced. When using FileWork or other UA-FI based solutions there will be no need for action because the new server certificate will be created with the same Root CA certificate. When using 3rd Party products you will find here all certificates necessary for this replacement. Please coordinate the installation of the certificates with the manufacturer of your P7 software.

Everything about BusinessMail X.400

Root certificates
Root certificates
Here you will find the current root certificate for TLS-encrypted access.
Here you will find the current root certificate for TLS-encrypted access.
To root certificates
WebConfig
WebConfig offers secure and simple web-based management of partner relationships and mail filters, including an automatable RESTful API for your configuration.
To WebConfig
Status Wartung
Status Wartung
Here you can find out about the current operating status of the BusinessMail X.400 system.
Here you can find out about the current operating status of the BusinessMail X.400 system.
About Status Wartung
Downloads
Downloads
Here you will find all the important descriptions and manuals you need for reliable data communication.
Here you will find all the important descriptions and manuals you need for reliable data communication.
To Downloads
Order forms
Order forms
Information about the helpdesk mailbox with contact address, telephone number and information about terms and conditions, services and prices for BusinessMail X.400
Information about the helpdesk mailbox with contact address, telephone number and information about terms and conditions, services and prices for BusinessMail X.400
To order forms
Product information
Product information
Product information BusinessMail X.400: Secure and fully traceable electronic business data exchange.
Product information BusinessMail X.400: Secure and fully traceable electronic business data exchange.
To product information