Not receiving emails, but can send them on desktop; but can do both on iPhone.

Question

Ok, I have spent since a day or so since the first of this month trying to solve this issue.  I use Hostgator, which shouldn't be an issue, but it seems to be. I have on my phone all my emails that are being hosted by hostgator set up as fetch, and it recieves my emails fine. My desktop though, can't.  It can see the servers, and send emails, but it can't do anything but.  It can't even download the emails I sent to myself, but when I go on web mail I can see them all.
My connection to the server is good:
But for some reason I can't recieve any emails from the IMAP server.
I put the computer is Safe Mode, and I could recieve the emails, but when I put it in normal mode, the emails don't download. I use Avast! Anti-Virus, I use SugarSync, I use Splashtop, And Free Memory Pro.
For web browsers, I use Crome, and Safari.
I use Apple Mail and Postbox, both can't recieve emails.
I can't imagine what is keeping my computer from downloading from the server. 
Can someone help please?

Answer 1

I have not seen that review before and the only thing I take issue with is
the authors of Clam AV for Mac, apparently do not understand these concepts. Both the admin and limited user can only scan files w/in "<user name>/documents". 99% of the files on a Mac are outside of "/users/<admin>,<other user>/documents. What good is a antivirus scan, that has no access?
There is only one author and I can assure you that he fully understands the permission issues involved. He is committed to follow Apple security guidelines in this matter which say that even an admin user should not be able to see files and folders belonging to other users without their explicit permission. I realize that there is a lot of software that ignore this rule, including virtually all other A-V software vendors, but I don't think he will ever budge on that subject. I'm sure this same limitation applies to any other A-V software downloaded from the AppStore.
ClamXav will scan any file or folder that the current user has read access to. For an admin user this is by far the majority of the files on the hard drive, not the 1% indicated by the reviewer. For a limited user, that would be reduced to only files that are owned by that user and any other files readable by "everybody".
I realize that it has widely been suggested that users not routinely operate with admin rights, but I'm guessing the number of users that are actually practicing that are minimal. Novice users won't see that guidance and most of those that do won't be able to figure out how to accomplish that. Experienced users may give it a try, but quickly get tired of switching back and forth to do their admin duties. To me one of those admin duties would be to run ClamXav periodically to pick up anything that may have slipped by, especially when there is more than one user using the computer. Each of those other users should also be using ClamXav to inspect their own files. Of course a limited use user can use an admin userid and password if they know it to do installations, etc., so it is possible to slip something by.
In the case of the web site version of ClamXav, a limited user can run Sentry to watch all of the entry points to the computer, including the download folder, e-mail and any external drives he has access to. That should detect any currently known malware, including Windows, before it becomes an issue.
Lastly, as far as I have been able to determine, all the ClamAV® signatures are for malware that would be readable to an admin user and most by a limited use user. It would be a waste of time to look into the unreadable portions of the System (mostly the Unix sub-system) since there is no currently known malware that would exist there.
What bothers me is that it won't look at files beyond ownership? I know it sounds odd, but I do deal with some form of internet esponage at times due to the type of company I am working on building.
Again, you will be able to examine any files readable by you, any group you belong to or "everybody" as long as they are enclosed in a directory (folder) that you can access. Here's an example of a full hard drive scan I did just the other day as a test:
Scanned directories: 192387
Scanned files: 914610
Total errors: 692
The "errors" are almost certainly files I did not have read access to as an admin so I was able to scan 99.9% of the files I had access to.
Disk Utility tells me I have 1,150,506 files at the moment, so I scanned about 79.5% of them.