使用过时的 System.Web.Mail 发送电子邮件可以正常工作,代码片段如下:
Public Shared Sub send(ByVal recipent As String, ByVal from As String, ByVal subject As String, ByVal body As String)
Try
Dim Message As System.Web.Mail.MailMessage = New System.Web.Mail.MailMessage
Message.To = recipent
Message.From = from
Message.Subject = subject
Message.Body = body
Message.BodyFormat = MailFormat.Html
Try
SmtpMail.SmtpServer = MAIL_SERVER
SmtpMail.Send(Message)
Catch ehttp As System.Web.HttpException
critical_error("Email sending failed, reason: " + ehttp.ToString)
End Try
Catch e As System.Exception
critical_error(e, "send() in Util_Email")
End Try
End Sub
这是更新的版本:
Dim mailMessage As New System.Net.Mail.MailMessage()
mailMessage.From = New System.Net.Mail.MailAddress(from)
mailMessage.To.Add(New System.Net.Mail.MailAddress(recipent))
mailMessage.Subject = subject
mailMessage.Body = body
mailMessage.IsBodyHtml = True
mailMessage.Priority = System.Net.Mail.MailPriority.Normal
Try
Dim smtp As New Net.Mail.SmtpClient(MAIL_SERVER)
smtp.Send(mailMessage)
Catch ex As Exception
MsgBox(ex.ToString)
End Try
我尝试了许多不同的变体,但似乎没有任何效果,我感觉它可能与 SmtpClient 有关,这些版本之间的底层代码是否发生了变化?
没有被抛出的异常。