When updating the program, it is recommended to configure the DKIM signature in Kaspersky Secure Mail Gateway 2.0 and use it in parallel with the DKIM signature for Kaspersky Secure Mail Gateway 1.1. This lets you carry out a seamless migration to Kaspersky Secure Mail Gateway 2.0.
Configuring the DKIM signature for messages when migrating from Kaspersky Secure Mail Gateway 1.1 to 2.0 involves the following steps:
As a result, both versions of the program will add their DKIM signatures to messages, each with its own DKIM key.