Method LoginAsync
LoginAsync(SmtpAuthentication, Object)
Begins asynchronous Login operation. Authenticates the user to the SMTP server using the specified authentication method that does not require credentials (NTLM or GSSAPI). Only supported on Windows.
Declaration
public Task LoginAsync(SmtpAuthentication method, object state = null)Parameters
| Type | Name | Description |
|---|---|---|
| SmtpAuthentication | method | Authentication method. |
| Object | state | An optional user-provided object that identifies this particular asynchronous operation. |
Returns
| Type | Description |
|---|---|
| Task |
LoginAsync(GssApiProvider, Object)
Begins asynchronous Login operation. Authenticates the user to the SMTP server using the specified GSSAPI provider. Only supported on Windows and partially on Mono.
Declaration
public Task LoginAsync(GssApiProvider provider, object state = null)Parameters
| Type | Name | Description |
|---|---|---|
| GssApiProvider | provider | GSSAPI provider. |
| Object | state | An optional user-provided object that identifies this particular asynchronous operation. |
Returns
| Type | Description |
|---|---|
| Task |
LoginAsync(String, String, SmtpAuthentication, Object)
Begins asynchronous Login operation. Authenticates the user to the SMTP server using the specified authentication method.
Declaration
public Task LoginAsync(string userName, string password, SmtpAuthentication method, object state = null)Parameters
| Type | Name | Description |
|---|---|---|
| String | userName | User name. |
| String | password | Password. |
| SmtpAuthentication | method | Authentication method. |
| Object | state | An optional user-provided object that identifies this particular asynchronous operation. |
Returns
| Type | Description |
|---|---|
| Task |
LoginAsync(String, SmtpAuthentication, Object)
Begins asynchronous Login operation. Authenticates the user to the SMTP server using an OAuth token.
Declaration
public Task LoginAsync(string token, SmtpAuthentication method, object state = null)Parameters
| Type | Name | Description |
|---|---|---|
| String | token | Authentication token. |
| SmtpAuthentication | method | Authentication method (only OAuth 2.0 is supported at the moment). |
| Object | state | An optional user-provided object that identifies this particular asynchronous operation. |
Returns
| Type | Description |
|---|---|
| Task |
LoginAsync(String, String, Object)
Begins asynchronous Login operation. Authenticates the user to the SMTP server.
Declaration
public Task LoginAsync(string userName, string password, object state = null)Parameters
| Type | Name | Description |
|---|---|---|
| String | userName | User name. |
| String | password | Password. |
| Object | state | An optional user-provided object that identifies this particular asynchronous operation. |
Returns
| Type | Description |
|---|---|
| Task |
Remarks
This method tries to authenticate using the following methods, in this order of preference: CRAM-MD5, DIGEST-MD5, PLAIN, LOGIN, GSSAPI, NTLM. The NTLM and GSSAPI methods are only attempted if no other method is available - please use Login(String, String, SmtpAuthentication) and specify NTLM or GSSAPI directly if you wish to use them.