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Dear Customers,

In December 2025 we are going to replace the old SSL certificate that is used by our system for AS2 communication. If you use AS2 to relay your messages via our infrastructure, you'll need the new certificate.

We are going to replace the certificate on Monday 8 December at 9.00 AM (CET = GMT+1). So be sure you have the new certificate ready to go for that date.

You can download the new certificate and eventually the associated Certificate Chain using the links below:

Certificate

Chain

We'll send an announcement by mail to all the AS2 customers in due time.

-GTT Messaging

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