How add only comment without old notification via mail handler when I answer html notification?

[aas]

Hello everybody. When I try to comment issue answering email notification in text format everything is ok , but if I get notification from Jira in html format and answer on it to comment issue, I get a lot of unwanted information such as old notification and From: , Sent:, To:, Subject:  in comment. 

In config StripQuotes is true, but I suppose it works only for text format notifications. What can I do with html format notifications?

Will be glad to any help.

[aas · Accepted solution]

The third method from here https://confluence.atlassian.com/jirakb/remove-previous-content-from-incoming-email-from-jira-server-in-microsoft-outlook-223218415.html?_ga=2.34232552.877125732.1578882506-188386877.1559530511  resolved my problem

[aas]

I use custom email handler plugin which check StripQuotes parameter in config file and if it's true, then 

NonQuotedCommentHandler nq = new NonQuotedCommentHandler();                    
nq.init(params, messageHandlerErrorCollector);
nq.handleMessage(message, messageHandlerContext);

if StripQuotes = false, then

FullCommentHandler fc = new FullCommentHandler();
fc.init(params, messageHandlerErrorCollector);
fc.handleMessage(message, messageHandlerContext);

As I understand, NonQuotedCommentHandler will strip any quoted lines from the email (ie lines that start with > or |) so text message have old information lines starts with > and that info doesn't add as a comment, but html format message doesn't and so all unwanted information adds as a comment. How can I fix this? May be there some class like NonQuotedCommentHandler where I can tune necessary lines, or I can change html template where I can add ---- Original Message ---- line and then NonQuotedCommentHandler class will not add everything below that line?