Scenario
You have configured Exclaimer for Apply to email from all devices including mobiles (Server-Side signatures), and you notice that the mail flow rule Identify messages to send to Exclaimer Cloud has the option Stop processing more rules.
You have concerns that enabling this option may prevent other important mail flow rules from being processed. Can you disable this option?
Resolution
We recommend keeping the option Stop processing more rules enabled for the Identify messages to send to Exclaimer Cloud mail flow rule. This will not prevent your other mail flow rules from running, they will still be processed as needed.
- Due to the complexities of email flow in Exchange Online, emails don't always follow the priority assigned to mail flow rules. The Stop processing more rules option is important if you're using other third-party services that also process emails. This option ensures that your emails are processed by Exclaimer first before being sent externally. Additionally, this option helps prevent footers (applied by mail flow rules) from being added to the email twice.
- As email flows from Microsoft 365 to Exclaimer, then back to Microsoft 365, the mail flow rules are evaluated twice. The Exclaimer mail flow rule includes an exception, so when the email comes back from Exclaimer, it no longer matches the rule. This means the Stop processing more rules option has no effect the second time. As a result, any other mail flow rules you’ve set up will still be processed after the email returns from Exclaimer.