c# .net 3.5 System.Net.Mail

Question

I'm out of ideas! If I do this:

string strTo = "email1@domain.com";
string strFrom = "email1@domain.com";
string strSubject = "turn on html";


MailMessage mail = new MailMessage(strFrom, strTo, strSubject, "<u>ok!</u>");

SmtpClient smtp = new SmtpClient("127.0.0.1");

smtp.Send(mail);

it works, but I see the html tags in outlook.

if I do:

mail.IsBodyHtml = true;

before

smtp.Send(mail);

I dont receive the email!

I have checked Exchange Message Tracking, the message is not there.

I have checked the smtp Logs, I dont see my message!

I have checked the spam filter, no message!

I have checked junk email folder, not there!

wierd thing is if I change the strTo to an external email it works!!!!

going crazy here :-(

Answer 1

After hours of searching, I found out if Content Filtering is Enabled with a Quarantine Mailbox, blocked messages are not logged and not found by Exchange's Message Tracking system.

This is on Exchange 2007.

All the messages were there, what a waste of time :-(