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- Remove the issue key from the subject to stop association and/or change/limit the Regex value for Subject IssueKey (comment) Regexps which will only associate with the issue key to it's project i.e. \bSPA-[0-9]+\b
- Disable Threading Checking - JEMH → Email →Pre-processing → Disable Thread Checking
Now, navigate - JEMH → Message Filters
Disable the X-JIRA-FINGERPRINT filter option as the mail should get picked up by Project B. One thing you must note that disabling this filter can result in mail loops as this option has been disabled globally.
Method #2
From JEMH 3.x0.x3+, a new feature has been implemented which will stop including the following mail headers:
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| Disable Mail Threading On | Disable Mail Threading Off |
|---|---|
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Now, navgiate JEMH → Profile → Project Mapping → Edit corresponding project → Email
Set the X-JIRA-Fingerprint to allow. This option is now applicable on Project levels whereas to before it was only applicable Globally.
