Email Address Exclusion: Email addresses (one per line) entered here are not saved in the sender or recipient fields (useful to save the mail handler address here to avoid mail loops). Supports regular expressions, to ensure your email address exclusion will not run into problems. Include (?i) at the beginning of the email address for safety.
Split Regex: Regular expressions (one per line) entered here are used to split the email body by a delimiter (optionally the original incoming email as well). See more details below.
External Email Senders: Specify how to treat emails sent from email addresses not registered as users in Jira. Options are to accept the mails for processing or to ignore (leave in the mailbox) these emails. If you want to prevent the situation that practically anyone could pollute your Jira instance by sending emails, simply set this option to Ignore.
Jira Mail Strategy: Specifies how to treat emails sent from the current or another Jira instance. Options are available to accept or ignore these emails.
Note: Please be careful to avoid email loops when sending emails between Jira instances.
Ignore Issue ID in Email Headers: By default, Email This Issue checks for the "In-Reply-To" and "References" email headers for Jira IDs if no issue keys appear in the email subject. If such an issue ID is found, it comments on the issue.
By enabling this option you can override the default behavior and make Email This Issue ignore these email headers. It can be useful to prevent confusion when an email sent from Jira is replied or forwarded back to Jira. In such cases, the seemingly unrelated issues may be commented on. If this checkbox is turned on, Email This Issue will only use the email subject and its own Issue Lookup Field Rules to process emails but will ignore the invisible email headers.