Setting up DKIM for Jira Server

[Deleted user]

Dear Support,

I am currently trying to configure DKIM for outgoing mail from Jira Server i.e. Jira Servicedesk running on-premise.

Our email service provider is Office 365 and all outgoing emails pass through Symantec Cloud prior to arriving with the recipient.

As I understand it, we need to configure Jira Servicedesk's outgoing mail to use DKIM, but there do not appear to be any articles available on how to do this.

As a result, an email sent from the Outgoing Mail > Send Test Email function to an external hotmail.com address results in the following source / header data where dkim fails:

smtp.mailfrom=test-balloonone.com; dmarc=pass (p=none sp=none pct=100) action=none header.from=test-balloonone.com; dkim=fail (body hash did not verify) header.d=test-balloonone.com; arc=fail (47)

Please note that a normal email sent directly to the same hotmail.com address results in the following source / header data where dkim appears to succeed:

smtp.mailfrom=test-balloonone.com; dmarc=pass action=none header.from=test-balloonone.com; dkim=pass header.d=test-balloonone.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=test-balloonone.com; s=selector1;

Please can you assist us with setting this up as soon as possible?

Thank you.