Issue Summary

After configuring incoming mail for Jira Service Desk with Strip Quotes enabled, when users reply to a notification to add a comment on Jira using Outlook, Service Desk is not removing all text from old notifications

Environment

• Jira Service Desk 4.2.2 with incoming mail
• Mails sent with Outlook

Steps to Reproduce

1. Configure Incoming Mail for a Jira Service Desk project
2. Enable Strip Quotes
3. Create an issue on Jira Service Desk
4. Reply to a notification

Expected Results

Jira will remove all old reply data

Actual Results

Jira will keep the From: line

Notes

For this test, I've used the following pattern:

From: Admin <admin@example.com
Sent: Thursday, June 18, 2015 12:29 AM
To: Ronald
Subject: Keyboard doesn't work

Jira removed all lines, except the first one (From: Admin <admin@example.com)

Workaround

• Remove manually the remaining text
• Create 1 mail server and mail handler for the “New” incoming emails and a second mail server and mail handler for “Reply” emails. Each mail server has it’s own separate email address, so you can get rid of the entire email thread.
• customise mail temples in JIRA to include a line that will help JIRA trim messages e.g. _---- Original Message ---- _ and specify it atlassian-jira/WEB-INF/classes/outlook-email.translations . Note, it will not trim whole message but every thing below this line and it will need to be moved to a new JIRA if you upgrade in the future.
• Use one of the methods documented here: https://confluence.atlassian.com/jirakb/remove-previous-content-from-incoming-email-from-jira-server-in-microsoft-outlook-223218415.html 
• Stop to use this client