Need to catch event before Outlook.MailItem.Send
<p>Currently I am developing an outlook addin with Visual Studio 2015 and VSTO.
I want to set the salutations according to the mail-recepients. </p>

<p>So on MailItem.PropertyChange I read out the recepients and set the salutation. 
After this the user can change the salutation afterwards. </p>

<p>Stupidly Outlook throws a new MailItem.PropertyChange-Event when I click on "Send" and my changed salutation is overwritten with the default salutation. </p>

<p>I already tried to catch the MailItem.Send-Event, but this PropertyChange is thrown before the Send-Event. </p>

<p>So I need to know if there is a solution to catch the buttonpress directly or something else.</p>

<p>Thanks in advance.</p>