Sorry if this isn't appropriate for webmasters stackexchange, but i'm not sure where it would go since it has to do with the logistics of setting up a website/email for a small company.

I have an ecommerce store with multiple addresses such as: - [email protected] - [email protected]

I'm not the only person managing the store. My partner and I both have those email accounts set up on each of our respective computers (right now it's using IMAP - he's on outlook and i'm on thunderbird).

We have one major problem with this setup - If I read an email before he does, he doesn't know it ever arrived because the IMAP tells the server that the email has been "read". Of course, the same problem exists if he reads an email before I do.

I understand that i can fix this problem by switching to POP3 and leaving the messages on the server. I'm okay with that... but it creates a NEW PROBLEM. If he replies to an email, it is no longer sync'd back to the server and therefore I can't read any emails that he has sent out. Same problem vice versa. This is also important for us because we want to know if one of us has already replied to an email so that the same thing isn't being done twice. With IMAP, all our sent emails are put in the Sent folder and synced to the server.

What's a good way to set this up for a small company where email sharing is involved? My website is hosted on arvixe business ASP...