been trying to send emails through visual basic but running into a problem. Everytime i run i either get the error "smtpException was unhandled" or "Operation timed out" any help would be appreciated
Imports System.Web
Imports System.IO
Imports System.Net.Mail
Public Class Form1
Dim mail As New MailMessage()
Dim SmtpServer As New SmtpClient
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
SmtpServer.Credentials = New Net.NetworkCredential("testemail1#gmail.com", "password")
SmtpServer.Port = 465
SmtpServer.Host = "smtp.gmail.com"
SmtpServer.EnableSsl = True
SmtpServer.EnableSsl = True
mail.To.Add("testemail#hotmail.co.uk")
mail.From = New MailAddress("testemail1#gmail.com")
mail.Subject = "Match Reminder"
mail.Body = "A reminder you have an upcoming match"
SmtpServer.Send(mail)
End Sub
Related
The code cannot run successfully and display the issue "The server response was 5.5.1 authentication required" even if there is no bugs for the program and I have turned on the "Access for less secure apps". What should I do?
Imports System.Net.Mail
Public Class Form1
Private mail As New MailMessage
Private smtp As New SmtpClient
Private Sub createmsg()
mail.From = New MailAddress(frrm.Text.Trim)
mail.To.Add(tosb.Text.Trim)
mail.Subject = subj.Text
mail.Body = body.Text
mail.Priority = MailPriority.Normal
mail.IsBodyHtml = False
End Sub
Private Sub createsmtp()
smtp.Credentials = New System.Net.NetworkCredential(frrm.Text.Trim, pass.Text.Trim)
smtp.UseDefaultCredentials = False
smtp.EnableSsl = True
smtp.Port = 587
smtp.Host = "smtp.gmail.com"
End Sub
Private Sub sendmsg()
smtp.Send(mail)
End Sub
Private Sub send_Click(sender As Object, e As System.EventArgs) Handles send.Click
Try
createmsg()
createsmtp()
sendmsg()
Catch ex As Exception
MsgBox(ex.ToString)
End Try
End Sub
End class
Imports System.Net.Mail
Imports System.IO
Public Class Form1
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Try
Dim mail As New MailMessage()
Dim SmtpServer As New SmtpClient(My.Settings.smtpserver)
mail.From = New MailAddress(My.Settings.from)
mail.[To].Add(My.Settings.destination)
mail.Subject = "Program"
mail.Body = "Hi this is a msg form .net application"
Dim path As String = My.Settings.desktop
Dim dir As New DirectoryInfo(path)
Dim filesInDirectory As FileInfo() = dir.GetFiles()
Dim attach As System.Net.Mail.Attachment
For Each file In filesInDirectory
attach = New System.Net.Mail.Attachment(file.FullName)
mail.Attachments.Add(attach)
Next
SmtpServer.Port = My.Settings.port
SmtpServer.Credentials = New
System.Net.NetworkCredential(My.Settings.username, My.Settings.password)
SmtpServer.EnableSsl = True
SmtpServer.Send(mail)
MsgBox("Sent Successfuly!", MsgBoxStyle.Information, "Send!")
mail.CC.Add(My.Settings.CC)
mail.Bcc.Add(My.Settings.BCC)
Catch ex As Exception
MsgBox("Failed Sending Email!", MsgBoxStyle.Critical, "Failed!")
End Try
Application.Exit()
End Sub
End Class
the cc and bcc is not working i cant send through cc nor bcc is there any problem with my codes? the user can use this cc and bcc like gmail.
Well - you are setting CC and BCC after you send the email. Thats your problem. Move the lines:
mail.CC.Add(My.Settings.CC)
mail.Bcc.Add(My.Settings.BCC)
Up to where you are setting Mail.Subject, etc.
This is a code snippet for sending email using vb.net:
Imports System.Net.Mail
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button1.Click
Try
Dim SmtpServer As New SmtpClient()
Dim mail As New MailMessage()
SmtpServer.Credentials = New _
Net.NetworkCredential("username#gmail.com", "password")
SmtpServer.Port = 587
SmtpServer.Host = "smtp.gmail.com"
mail = New MailMessage()
mail.From = New MailAddress("YOURusername#gmail.com")
mail.To.Add("TOADDRESS")
mail.Subject = "Test Mail"
mail.Body = "This is for testing SMTP mail from GMAIL"
SmtpServer.Send(mail)
MsgBox("mail send")
Catch ex As Exception
MsgBox(ex.ToString)
End Try
End Sub
End Class
Can I add CC and BCC address too? If yes, what are the possible codes?
e_mail.CC.Add("user#domain.com")
e_mail.Bcc.Add("user#domain.com")
Got it from myself :)
I really started to get confused about sending an e-mail to (example: test#test.com) through VB.NET and for sure using SMTP.
I want the mail to be sent when Button1 is clicked (example).
So I started by a code like that
Imports System.Net.Mail
Public Class MyProgram
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Using message As New MailMessage()
'set to the from, to and subject fields
message.From = New MailAddress("sender#sender.com")
message.[To].Add(New MailAddress("test#test.com"))
message.Subject = "Test"
'code the message body
Dim MsgBody As String
MsgBody = TextBox1.Text.ToString() & vbCr & _
TextBox2.Text.ToString()
message.Body = MsgBody
Dim client As New SmtpClient()
client.Host = "smtp.example.com"
client.Port = "465"
client.EnableSsl = True
client.Credentials = New Net.NetworkCredential("USERNAME#MAIL.COM", "PASSWORD")
client.Send(message)
End Using
'display submitted box
MessageBox.Show("Congrats", "Congratulations!")
'close form
Me.Close()
End Sub
End Class
And I get:
Next, I tried another code (which is) ...
Imports System.Net.Mail
Public Class MyProgram
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim Smtp_Server As New SmtpClient
Dim e_mail As New MailMessage()
Smtp_Server.UseDefaultCredentials = False
Smtp_Server.Credentials = New Net.NetworkCredential("USERNAME#MAIL.COM", "PASSWORD")
Smtp_Server.Port = 465
Smtp_Server.EnableSsl = True
Smtp_Server.Host = "smtp.example.com"
e_mail = New MailMessage()
e_mail.From = New MailAddress("sender#sender.com")
e_mail.To.Add("test#test.com")
e_mail.Subject = "Test E-mail Address Sent by My Program"
e_mail.IsBodyHtml = False
e_mail.Body = "Test"
Smtp_Server.Send(e_mail)
MsgBox("Mail Sent")
End Sub
End Class
And now I get the following in the Debugger:
And at last the e-mail isn't sent!
Please don't say "sender#sender.com" isn't configured as a sender e-mail address because it is!
I really need help!
Thanks. :-)
Can anyone help me. I've created a email program. I'm having an error when clicking on the send button. Here's my code:
Imports System.Net.Mail
Public Class frmEmail
Dim emailaddress As String
Dim password As String
Dim port As Integer
Dim host As String
Private Sub frmEmail_Load(sender As Object, e As EventArgs)
If emailaddress.ToLower.Contains("#gmail") Then
port = 587
host = "smtp.gmail.com"
ElseIf emailaddress.ToLower.Contains("#yahoo") Then
port = 465
host = "smtp.mail.yahoo.com"
End If
End Sub
Private Sub btnSend_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSend.Click
Try
Dim smtpServer As New SmtpClient
Dim mail As New MailMessage()
smtpServer.Credentials = New Net.NetworkCredential(emailaddress, password)
smtpServer.Port = port
smtpServer.Host = host
smtpServer.EnableSsl = True
mail = New MailMessage()
mail.From = New MailAddress(emailaddress)
mail.To.Add(txtTo.Text)
mail.Subject = txtSubject.Text
mail.Body = txtMessage.Text
smtpServer.Send(mail)
MsgBox("The mail is send!", MsgBoxStyle.Information)
Catch error_t As Exception
MsgBox(error_t.ToString)
End Try
End Sub
End Class
And I've got this error: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name:value
at System.Net.Mail.SmtpClient.set_Port(Int32 value)
***Edited forgot to modify it to the original code
Your sub
Private Sub frmEmail_Load(sender As Object, e As EventArgs)
doesnt run when the form loads.
Because of this port is set to the default value of 0
You need to tell VB.Net to run when the form loads like this
Private Sub frmEmail_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Also further on down the code, you might find that you get an error about authentication from the email server. If you get this, just below
Dim smtpServer As New SmtpClient
add this
smtpServer.UseDefaultCredentials = False
it might work.