How important is it to fix Server Errors?

[DoRM]

I know it is important to fix server errors.  We are trying to figure out how important because after our last build we have over 19,646 of them and since google only gives us a 1000 at a time the fastest way to tell them we have fixed them all is to use the api etc which will take time.   WE are trying to decide is it more important to fix all these errors right now or focus on other issues and fix these errors when we have time, they are mostly ajax errors.  Could this hurt our rankings?  Any thoughts would be great!

[ChrisHolgate]

It is my understanding that marking the answers as fixed simply tells Google that you no longer want to see the message, rather than actually asking Google to try accessing the erroneous resource again or to reinclude it in the index.

On that basis, marking the errors as fixed isn’t important at all as Google will establish for itself that the error has been resolved.

[DoRM]

We have fixed the issues.  We just want to let google know we have fixed them.

[josh-riley]

Yup; if Google can't get to your content, then people can't get to your content. Loss of leads or revenue or whatever you are aiming for.

Yes, it can hurt your rankings, as if they can't get to your site/pages, then they can't rank and show your content.

[OlegKorneitchouk]

Pretty important - read https://support.google.com/webmasters/bin/answer.py?hl=en&answer=2409437

"Googlebot couldn’t access your site because the request timed out or because your site is blocking Google. As a result, Googlebot was forced to abandon the request."

If G can't access your site, it's not going to end well.