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1809

answers:

3

Hello, is there any way in MVC to get the System.Net.Mail SendAsync to work, instead of the blocking Send method?

I tried using it but hit the "Page starting an asynchronous operation has to have the Async attribute" error, which I obviously can't resolve (or can I?) because there is no ASPX page with an @Page directive where I could add the Async attribute.

Help is greatly appreciated :(

+1  A: 

It looks like you want Asynchronous support for ASP.NET MVC. See also "Extend ASP.NET MVC for Asynchronous Action".

This SO question is also relevant.

Matthew Flaschen
+1  A: 

You may want to consider putting the email into a database table and then have a daemon that sends out emails by processing the queue.

a) if youre not sending billions of emails you can have a log of what you sent
b) you can resend if something fails.

depends how important these emails are, but if theyre important from a business standpoint and mustnt get lost then you should use this approach.

Simon_Weaver
@downvoter - urm so what if the mailserver is down or inaccessible? you want to lose the mail
Simon_Weaver
+1 - Simon, this is a sound principle, one which I have practiced successfully. It also helps separate concerns and manage a single connection to the SMTP server (we customise our application security to filter apps that are allowed to use our WCF service).
Russell
+1  A: 

If you're using a third party service such as gmail to send your email and relying on SendEmail or SendAsync you may want to set up your own SMTP server which will then relay onto gmail. The benefit is that SendEmail will return much faster and you may be able to forget the whole async thing.

That way if gmail rejects you for whatever reason the email will still sit in your local queue.

This is a quick and dirty way to get somewhat reliable email sending setup.

Instructions (not personally tested, but i did this years ago*) or see this for Windows 7

*of course I only remembered i did this after spending a long time converting over to async :-(

Simon_Weaver