You have a hybrid mail flow environment with mailboxes both on-premises and in Exchange Online (Microsoft 365). You want to know how best to configure Exclaimer Cloud for this scenario.
There are different recommendations for client-side and server-side signatures.
To apply client-side signatures to on-premises mailboxes, use the Exclaimer Cloud Signature Update Agent.
- Complete the steps for Connect to Microsoft 365.
This will allow for any emails routed through Exchange Online to have a signature applied.
- Complete the steps for Exchange On-Premises.
This will allow any emails that remain on-premises or route directly out to the internet from the on-premises server to have a signature applied.