I Can Send Email Out But I Can Not Receive Email In

I recently received help (from comcast phone support) for setting up comcast to host my email and I was thrilled to email out.  However when I tried to reply back to my comcast business email, the email is undeliverable.  I also can not get outlook to see the email address.  

I saw a post with a simular problem but the answer seemed to given in a private email.  

I need this to work very soon, since I have been calling support every few days for a month to get all the set-up done correctly.  What do I need to do to get this email to be functional?

Apparently as shown below your domain zone file is in need of your administrator's attention on contained records. I would recommend you log into your Business Class Portal adminitrator's email address, then under Manage Services.EMail you need to click the View DNS Settings and using the appropriate and bonafide records in this listing. The A record requires a different solution that can only be provided by your administrator of this zone file. Lastly it is also necessary for you to process this domain using these instructions to bring email functionality un the Comcast umbrella.

Hope this helps you out.

I have followed the directions to the best of my ability and I have checked the DNS advanced settings through the Comcast Business Class Portal.  I do not see anything wrong.  The CNAME and the MX records match the DNS info for domains provided by Management Services\Website.  I do not understand what I am doing but I follow directions well.

This business is a very small company, so I am the unexperienced administrator.  The other employee here has no patience for this kind of problem.  Do you have any useful references so I can know what I am doing?

It is always customary that whoever hosts your domain is the one to make sure that your zone file settings are correct and this in turn, allows your email to operate consistently. You need to follow the instructions I provided to you in order to add your existing domain, once this is successfully completed, then you need to log into your Business Class Portal administrator email account, then go to Manage Services. Email, and click on View DNS Settings link. This will provide you all your domain and email address settings that you should get over to your domain hosting administrator and request that he update your zone file accordingly.

Hope this heps you out.