| RegisterRateLimit | (var Record Email Rate Limit, Record Email Account, Integer) | | public | 21-28 | - |
| UpdateRateLimit | (Record Email Account) | | public | 21-28 | - |
| IsRateLimitExceeded | (Guid, Enum Email Connector, Text[250], var Duration) | Boolean | public | 21-28 | - |
| GetRateLimit | (Guid, Enum Email Connector, Text[250]) | Integer | public | 21-28 | - |
| IsConcurrencyLimitExceeded | (Guid, Enum Email Connector, Text[250]) | Boolean | public | 26-28 | - |
| GetEmailOutboxCurrentProcessingCountDuringPastOneHour | (Guid) | Integer | internal | 26-28 | - |
| GetConcurrencyLimit | (Guid, Enum Email Connector, Text[250]) | Integer | public | 26-28 | - |
| GetMaxRetryLimit | (Guid, Enum Email Connector, Text[250]) | Integer | public | 26-28 | - |
| GetDefaultConcurrencyLimit | () | Integer | internal | 26-28 | - |