使用 c# asp.net 进行 AspNetMx 电子邮件验证

Question

我正在尝试使用 aspNetMx API。我想知道以下数字。 检查邮件是否有效。

1. 如果电子邮件有效（表示域有效且用户也存在）=> 标记为有效（例如 X）

2. 如果电子邮件无效，=> 标记为无效（例如 Y）

   2.1。这是由于错误的电子邮件语法（例如 Y1）

   2.2。这是由于错误的电子邮件域（例如 Y2）

   2.3 邮箱坏了（比如 Y3）

以下是 aspNetMX 验证电子邮件地址的不同级别。

MXValidateLevel.NotValid

MXValidateLevel.Syntax

MXValidateLevel.MXRecords

MXValidateLevel.GreyListed

MXValidateLevel.SMTP

MXValidateLevel.Mailbox

问候，

Answer 1

您应该在线查看文档：取自http://www.aspnetmx.com/help/index.htm

MXValidate mx = new MXValidate();

string email = "test@hotmail.com";
MXValidateLevel level = mx.Validate( email, MXValidateLevel.Mailbox );

switch( level )
{
case MXValidateLevel.NotValid:
//bad email address, remove from email address list
break;

case MXValidateLevel.Syntax:
//the email address is syntactically correct
break;

case MXValidateLevel.MXRecords:
//mx records were found, but for some reason
//the SMTP server couldn't be found
//save email for checking later, and see if SMTP servers fail again
break;

case MXValidateLevel.SMTP:
//able to connect to the mail server
//but mail server said email address was bad
//remove from list
break;


case MXValidateLevel.Greylisted:
//able to connect to the mail server
//but mail server said email address was greylisted
//for a later time.
//try back later
break;

case MXValidateLevel.Mailbox:
//the email address validated to the mail box `enter code here`level
//and the mail server will accept email for that address
break;
}