When you use EASendMail.dll as ActiveX through HTML/Javascript code in your application (embedding IE component).
It works very well, but we always get a warning popup saying the ActiveX could be unsafe and ask to confirm it's use.
If you don't want the "warning information", you can do it like this:

First of all, here are the EASendMailObj Objects CLSID:

{DF8A4FE2-221A-4504-987A-3FD4720DB929} EASendMailObj.Mail
{FF80631D-E750-4C67-AFC3-5170AB72518B} EASendMailObj.FastSender
{EAFC4EAA-9390-492A-8E53-E179527780F6} EASendMailObj.Certificate
{036C2F8C-8D3C-4F4B-9B36-3B6F1D29C0B4} EASendMailObj.CertificateCollection

For example, you want to use EASendMailObj.Mail object in HTML/Jscript without warning.

Please open your registry with regedit tool
Then find:
{DF8A4FE2-221A-4504-987A-3FD4720DB929}

And add the following keys, then it is ok

• HKEY_CLASSES_ROOT\CLSID\{DF8A4FE2-221A-4504-987A-3FD4720DB929}\Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}
• HKEY_CLASSES_ROOT\CLSID\{DF8A4FE2-221A-4504-987A-3FD4720DB929}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}