Zimbra Web Client strip some URL characters

Hello experts,
I installed ZCS 7.1 and I found URL displayed problem in Zimbra Web Client.
I had a email from a newsletter which has a URL in it, this URL is abnormally seen from Zimbra Web Client, but is normally seen in outlook/thunderbird/

The URL is encoded in Quoted-Printable just like below:

http://postman.ntut.edu.tw/showmessa...QBR@QJRETETJUB

When I saw from Zimbra Web Client, it became to

http://postman.ntut.edu.tw/showmessa...QBR@QJRETETJUB

The 0x0C 0x1A 0x05 characters are disappeared. So I can't connect to this URL from Zimbra Web Client.

But if I read this email from outlook/thunderbird, these characters are actually there and I can connect it from thunderbird/outlook.

It seems that Zimbra Mail Parser can't recognize these characters and cut it.

Can your experts solved this problem?