What has pushed email security outsourcing is that no onsite equipment or external access to private servers is required. All that needs to be done is to change the DNS MX record of the domain to point towards the mail gateway of the service provider which implies that first of all the mail is routed through their systems and the gateway of the vendor is a virtual address load which is balanced across multiple enterprise class filtering appliances which results in cent percent uptime.
Mails are thoroughly filtered for spam, inappropriate content and viruses and the blocked mails are manually reviewed. Since the filtering is external to the corporate network it does not interfere with the security devices of the company.
What email security outsourcing offers is convenience to the company and eliminates all network traffic related with spam. It also offloads the connection management related to running of an email gateway. On the other hand control over important infrastructure may be lost and reliability might not be delivered but here the pros are more than the cons and this form of outsourcing can certainly be exploited by the companies.
Via processor
