Increase Jira Service Management email size limit and show failed emails(due to size) in email logs

Problem Definition

As stated in this document, emails with a total size of more than 25MB (including attachments) are not fetched.

At the moment nothing will be thrown in the logs regarding the mail that has not been created.

Suggested solution

• Enable the Jira Service Management email puller to pull emails larger than 25MB.
• Alert the admin/reporter that their message has not been processed due to email size.
• Show the failed emails(due to size) under the email logs