Anything that happens during a run of DOTS Email Validation 3 that causes it to be unable to finish its normal processing is an error. If an error occurs, something similar to the following will result instead of the normal/typical output: 

 

Example:
*Error!*
<Type>Authorization</Type>
<TypeCode>1</TypeCode>
<Desc>Your license key does not work on this service.
</Desc>
<DescCode>8</DescCode>

There are four error types described below.

Error Types

Type TypeCode Billable standard Across All Gen2 Web Services
Authorization 1 No Yes
User Input 2 Yes No
Service Objects Fatal 3 No Yes
Domain Specific 4 Yes No

Error type 1: Authorization

Theses are standard to all Generation 2 DOTS Web Services.
DescCode Desc
0 Unknown authorization error.
1 Please provide a valid license key for this web service.
2 The daily allowable number of transactions for this license key has been exceeded.
3 The monthly allowable number of transactions for this license key has been exceeded.
4 The total allowable number of transactions for this license key has been exceeded.
5 There are not enough transactions available. Check your daily/monthly transaction limits.
6 This license key has not yet been activated.
7 This license key has expired.
8 Your license key does not work on this service

Error type 2: User Input

User Input errors are caused when a user inputs an invalid value or fails to provide a certain input field altogether. If a developer creates a request and mistypes a parameter name, it will probably cause a User Input Error.
DescCode Desc
1 You must input an email address in the EmailAddress field.
2 You must input a license key in the LicenseKey field.
3 You must enter True or False in the AllowCorrections field.
4 Invalid value for AllowCorrections. Please enter True or False.
5 You must input a time out value in the timeout field.
6 Invalid timeout value. Please enter a timeout value of 200 miliseconds or more.

Error type 3: Service Objects Fatal

The Desc will always be the same and the DescCode has no meaning. This is standard to all Generation 2 DOTS Web Services. This is a rare error that signals either a bug in the DOTS Email Validation 3 service, or a Network/Connectivity issue.
DescCode Desc
1 Unhandled error. Please contact Service Objects.

Error type 4: Domain Specific

Domain specific errors represent the common errors seen in Service Objects services.
DescCode Desc
1 Operation Not Supported.