Hi I have a problem with this code:
<system.net>
<mailSettings>
<smtp deliveryMethod="Network" >
<network host="10.226.5.191" port="25" defaultCredentials="true" userName="" password="" />
</smtp>
</mailSettings>
</system.net>
throw the error:
The mailbox is unavailable. The server response was: 5.7.1
and i have to use defaultCredentials="true" and don´t pass user and password..
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