HEATKEYS

Zimbra provides open source email and calendar groupware software, Zimbra is a popular choice for Linux and Mac OS X email servers and supports SaaS deployment, appliances and virtualization platforms.

Professional Email Hosting Services for Businesses. Features include IMAP, POP3, Webmail and SMTP, Anti-spam, Easy administration. FuseMail has been rated the number 1 email hosting solutions provider.

AppRiver provides exchange hosting and is a business email hosting provider and offers managed virus, spam, and email protection. Services are easy, effective and affordable.

Expedient has a broad depth in a variety managed services. Let Expedient’s managed data servers allow you to focus completely on business at hand. Contact us.

Innovating how enterprises do business by building and deploying cloud and IT, advanced communications, networking, security, and mobility solutions.

Get product information, support, and news from Microsoft.

Microsoft Exchange Server portal for information of interest to corporate users of Microsoft Exchange and those who are just interested. Contains software, information, faqs, news, forums and more

Apptix is a leading unified communications company. Providing Exchange email hosting, hosted VoIP, mobile Exchange hosting & SharePoint hosting.

Intermedia: The top-selling hosted Exchange service — and the only source for hosted Exchange 2010. Free migration from Exchange 2003/2007. 25 GB mailboxes.

Hosted Exchange 2010 Provider 123Together.com offers Exchange Server 2010 & 2007, Exchange Hosting 2010 - Dedicated & Shared Microsoft Exchange 2010 hosted email, SharePoint Hosting, Hosted CRM

OpenSRS

Email Hosting and Email Accounts - Everyone.net Email Services offers the best hosted email, business email accounts, message archiving and online storage services for small businesses, ISPs and individuals.