POP email, has longevity and reliability as key features. POP is supported by virtually all devices. It is inexpensive and requires no license. You are able to download and access your e-mails onto one specific device. No information is stored once downloaded, making it extremely secure. There is a fixed monthly cost for this service.
Another benefit of using POP email is SMTP functionality. This functionality allows integration of fax, printers and scanners with your email solution and sends email directly from those devices. The cost is directly related to gigabytes stored on the email server.
These business e-mail solutions can be billed on a per user basis (Software as a Service or Saas) or as Platform as a Service (PaaS). PaaS is very beneficial to organizations that have a large number of users as it allows the organization to control the cost of e-mail.