I set custom error to off but i don't take any error code because automatically the page says that:
A problem occurred sending the email. Please contact the system administrator.
My web.config code is:
<system.net>
<mailSettings>
<smtp>
<network host="mrelay.perfora.net" port="443" defaultCredentials="true"/>
</smtp>
</mailSettings>
</system.net>
but nothing works......I try to put defaultCredentials to false.......nothing happened....
I delete defaultCredentials from web.config code..........nothing happened again......I have the same error....
1&1 told me that mrelay.perfora.net hasn't got SSL, so there is no need for extra SSL code, and told that there is no need for user name or pass.....
I really don;t know what to do.......