"SendUsing" configuration value is invalid.

[ramyar]

Hi,

 

I am trying to send mail in asp.net and I get the following error. Plas help.

 

The "SendUsing" configuration value is invalid.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

 

Exception Details: System.Runtime.InteropServices.COMException: The "SendUsing" configuration value is invalid.

[peterdoherty]

Ive had this prblem before and spent about 3 weeks trying to fix it to no avail. User JMail from http://www.Dimac.net (its free) and youll have no probs

[sonnywood]

I don't know if this is any help but.... I have a group of students that were trying to send mail and we were getting the same error. When I allowed relaying in the SMTP server settings for my computer then they could use mine. The only difference between the students computer and the instructor's is that my MAC address for my NIC is set up for complete access in the firewall and the students are limited.

 

 

Hope this helps

[dvdaniels]

I am copying my finds I posted elsewhere. I think I know what is going on. You need to download the latest exchange servicepack and replace the cdoex.dll in the C:\Program Files\Common Files\Microsoft Shared\CDO directory. I had version 6.0.4641.0 and it would not work and gave me the same message that it gave you. I Downloaded the service pack 3 for exchange and extracted it. It will not let you install it unless you have Exchange Server 2000 so you have to grab the file manually. Once you are at that point, the dll is going to be in use so you will have to shut down to safe mode. Replace the file and reboot. The new version of the file should be 6.0.6249.1 then it should work or at least mine did after I did that. I hope that helps someone out there who is having this problem.