How do I get the features of the Sandbox Solution without deploying the solution?

If due to restrictions (e.g. organization policy) you can't activate Sandbox Solution, you can get the same functionality by performing the following steps:

OnePlaceMail Email Columns

SharePoint 2013

Navigate to Site Columns

Select Settings| Web Designer Galleries | Site Columns

SharePoint 2010

Select Site Settings,

Select, Galleries | Site Columns

These columns must be created with the name (internal names) as they are listed below and can be renamed (display name) once they have been created.

EmSubject	EmConversationIndex
EmTo	EmCategory
EmToAddress	EmBody
EmCC	EmSensitivity
EmBCC	EmImportance
EmFrom	EmToSMTPAddress
EmFromName	EmCCSMTPAddress
EmDateSent	EmBCCSMTPAddress
EmDateReceived	EmFromSMTPAddress
EmType (derived based on user filing)	EmHasAttachments
EmDate (derived based on EmType)	EmSentOnBehalfOfName
EmID	EmReceivedOnBehalfOfName
EmAttachCount	EmCompanies
EmAttachmentNames	EmRetentionPolicyName
EmCon	EmReplyRecipientNames
EmConversationID	EmReplyRecipients

Create OnePlaceMail Email Content Type

Open Site Settings and navigate to Site Content Types

Create new content type with name OnePlaceMail Email based on the "Document" content type

Open the newly created content type, and add columns from existing site columns which were created in previous section.

Now you can use this content type and columns in any library inside your site collection.