Sending Email using VB.NET without installing SMTP server.

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Hey guys.
I need a help on sending email using VB.NET without having installed SMTP server/IIS.
I tried using System.Net.Mail namespace to send Email, but its not working. I get the error :

VB

554,Transaction failed,Sender <xxxx@companyaaa.com> rejected.

I dont want to install SMTP server/IIS. I wonder how this outlook works, I have configured my outlook with my email settings and it works. But not in VB.NET.
Assume I have the settings in Outlook as follows :

Email Addres : ABC@companyAAA.com
Server Info >
Account Type: POP3
Incoming Mail Server: secure.webemail.com
Outgoing Mail Server: secure.webemail.com
Username : ABC@companyAAA.com
password : 123456

Outlook > More Settings >
Incoming Port(POP3):110
Outgoing Port(SMTP):25

Is there any method to send email using above settings? Also someone please explain me how this outlook works without SMTP?
Thanks.

Posted 27-Feb-12 21:06pm

tonydsouza1987

Updated 27-Feb-12 23:10pm

Herman<T>.Instance

v2

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Comments

Herman<T>.Instance 28-Feb-12 3:26am

which security settings your current smrp server uses? Do you use credentails?

tonydsouza1987 28-Feb-12 4:23am

Yes I use credentials. I used Net.NetworkCredential to supply credentials. It doesnt work. Then I came to know that I need to install SMTP. But is it possible to send email without Installing SMTP component?

Herman<T>.Instance 28-Feb-12 5:11am

is the outgoing port 25 or another one?

tonydsouza1987 28-Feb-12 5:49am

25.

Simon_Whale 28-Feb-12 6:19am

Each Email hosting company will require you to send mail through their severs in a particular way, I would suggest that you contact them and find out what they need you to do for it too happen.

As I have done something similar before and one provider required me to use a sercure authsmtp server and another provider requires you to just send it to them with a valid user name a password.

2 solutions

Solution 2

hi..please try this..

VB

Imports System.Net.Mail
Partial Class Gmail
    Inherits System.Web.UI.Page
    Protected Sub Button1_Click1(sender As Object, e As System.EventArgs) Handles Button1.Click
        Dim mail As MailMessage = New MailMessage()
        mail.To.Add(TextBox1.Text)
       mail.From = New MailAddress("YourGmailID@gmail.com")
        mail.Subject = "hi"
        mail.Body = TextBox2.Text
        mail.IsBodyHtml = True
        Dim smtp As SmtpClient = New SmtpClient()
        smtp.Host = "smtp.gmail.com"
        smtp.Credentials = New System.Net.NetworkCredential("venkatmca008@gmail.com", "yourpassword")
        smtp.EnableSsl = True
        smtp.Send(mail)
    End Sub
    Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load
    End Sub
End Class


]]>

Posted 28-Feb-12 0:19am

venkatmca008

Comments

Member 11129380 29-Jul-20 3:21am

Failure sending mail.
{"Failure sending mail."}

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tonydsouza1987 · Accepted Answer · 2012-02-28T00:16:00

Hey digimanus,
Sorry for bothering you on this. It was my mistake I had given passwd wrong.
I think we dont need SMTP/IIS windows feature installed to work this.
I got it working without SMTP installed.

'ABC@companyAAA.com > My email ID
'XYZ@(companyAAA.com > recepient)
'secure.webemail.com > Incoming Mail server/Outgoing Mail server as configured in outlook.
Dim emailMsg As New MailMessage("ABC@companyAAA.com", "XYZ@companyAAA.com", "Subject", "Body")
Dim smtpclnt As New SmtpClient("secure.webemail.com", 25)
smtpclnt.Credentials = New Net.NetworkCredential("ABC@companyAAA.com", "123456")
smtpclnt.EnableSsl = True
Try
    smtpclnt.Send(emailMsg)
Catch ex As SmtpException
    MessageBox.Show(ex.ToString)
    Exit Sub
End Try
MessageBox.Show("Email sent succesfully")

Thank you for your conern.