What is the best way to send application errors and logs by internet to the developers?

Question

As the author of a C# application, I found that troubleshooting issues reported by users would be much easier if I had access to the exception or debug logs.

I have included a home-grown logging mechanism that the user can turn on or off. I want the user to be able to submit the logs via the internet so I can review the logs for the error.

I have thought of using either SMTPClient or a web service to send the information. SMTPClient might not work because firewalls may block outgoing SMTP access. Would a web service has issue with sending a large amount of data (potentially 1+ MB)?

What would you recommend as the best way to have an application transmit error reports directly to developers for review?

EDIT: Clarification: This is a Windows application and when an error occurs I want to bring up a dialog asking to submit the error. My question is about the mechanism to transmit the error log from the application to me (developer) via the internet.

Answer 1

Some way that let's the user know you mean to do it. Ask them for a proxy, ask them for an email server, something like that.

The security minded will get real nervous if they discover that you're opening a socket or something like it and sending data out without notification.

And rightly so.