Conga Contracts - Conga Contracts is management solution designed to accelerate and simplify contract negotiations in Salesforce.
mailcow - An open source mailserver suite.
Concord - Contract Management Software and unlimited Electronic Signatures. Reduce costs, maximize compliance & mitigate risk. Enterprise solutions available.
hMail Server - hMailServer is a free e-mail server for Microsoft Windows.
ContractZen - ContractZen is a cloud service that features advanced metadata-driven document and contract...
SmarterMail - SmarterMail is a next generation email management server that is offering several business collaboration and communication features as well.