I need to send an email via SMTP, I have my SMTP in a Linux Centos Server, and I created the software to send emails with VB.NET 2010.After using the namespace : System.Net.Mail.SmtpClient, I receive an exception :
Mailbox name not allowed.The server response was: sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)
I am sending an email with an attachment using the following Code
Dim msg As New System.Net.Mail.MailMessage(req.EmailFrom, req.EmailTo)
Dim att As New System.Net.Mail.Attachment("C:Documents and SettingsmichaelrDesktop1216259.pdf")
With msg
.Attachments.Add(att)
[code]....
The file size of the attachment is 396KB, upon the recipient receiving the email outlook shows the file size as 543Kb. Strange thing is if I send an email with the same attachment using outlook the file size is 396Kb.I understand that file sizes can increase due to the attachment being base 64 encoded as opposed to just raw binary.What I am failing to see is why outlook send a file which is 396KB in size but in code when sending it, the same file is 543Kb.
I'm trying to get my program to send very simple text email messages. I did do a search beforehand, and found that I was having the same issue as someone else, but the specific question I have was not answered --
I've learned that if you're trying to send mail, you need an SMTP server... I found this list here but every one of them I've tried yields the same "Failure sending mail" error.
Here's my
Dim mail As New MailMessage()
mail.From = New MailAddress("me@mycompany.com")
mail.To.Add("destination-email@whatever.com")
[CODE]...
Is the problem that I need to show "credentials" (i.e. user/pass)? If so, what would those credentials be? Can I use my yahoo email SMTP server with my login info to do it? And is this all I'd need to add to add the credentials?
smtp.Credentials = New NetworkCredential("MyUsername", "MyPassword")
(before the smtp.Send, of course)
how to automate generated send email using vb.net, example what time do you want to send the message. and set time before you leave and after that the system will automatic to generate.
View 3 RepliesI'm using this code to send an email via smtp in VB 2008:
Dim smtp As SmtpClient = New SmtpClient("mail.mydomain.org")
Dim SMTPUserInfo As NetworkCredential = New NetworkCredential("notifications@mydomain.org", "mypassword")
[Code]....
This has had me stumped for the last week, but I think I got a little closer to atleast identifying the problem when I took it home. Ok, the code above doesn't work when I'm at work for some reason. The exception message is: "Unable to connect to the remote server. ". Seems odd because I am simply using the internet to connect to my smtp server to send an email. When I'm at home, this works just fine.
what is stopping it from going through when I'm at work? If I atleast know that, I may be able to tell our network guys what it is so they can allow it to get out.
I'm trying to send an email via the SMTP Client. The following line is rejected
CredentialCache.DefaultNetworkCredentials
The intellisense suggests this one:
Net.CredentialCache.DefaultNetworkCredentials
I'm using the System.Net.Mail Namespace...is this the correct one?
I have the following code to send email through SMTP:
Code:
Private Sub SendMailToAdmin()
Try
[code].....
Does anyone know of any free SMTP Email providers? Like a GMail alternative?
View 1 RepliesI am trying to attach files that get emailed along with the text data from my text boxes on buttonclick.
Here is what part of my code looks like:
mail.To.Add(TextBox2.Text)
mail.Subject = ComboBox1.SelectedItem.ToString
[code].....
I am using following code to send email through smtp server, I have tested this code on my machine and its working fine but after deploying the project on server 2003, exe file runs okay but i am not receiving any emails?
'create the mail message
Dim mail As New MailMessage()
Dim smtp As New SmtpClient("smtp.server.europe.com")[code].......
How can I send an Email with VB.2008, is the SMTP server needs autentication???
I can do it without autentication, mas with that, it doesnt work
I have a form with a "Send" button to test a code to send SMTP emails.It fires the click event when I hit the "Send" button, but the email is never sent if I leave the form running. When I close it, the email is sent.This is not the needed behavior because the User may never close the Application (this is a Client/Server application, not Web).Below is the code behind the "Send" button's click event[code]...
View 1 Repliesi am working on a my project, which send email to me using gmail.smtp, it works fine on xp, vista, and + some of windows 7 versions, in few pc's i had tried that, and got a issue.here is detail of error i got in there, i am using visual studio 2008 & a internet with proxy server,n my openion its a problem with internet ? maybe ? because when i had used this on my dsl connection it worked.
View 7 RepliesThis vb.net code seems to work ONLY if run... and I keep the program open for an additional 5-10 secs AFTER I see the "email sent" message. If I instead wait 0-1 secs, and then close the prg, the email goes nowhere.Does SMTP.Send() return AFTER the email is completely sent... or just when the email BEGINS to go out? (Sometimes the email body and/or file attachment might be 10k long, and take a while.)
Dim myMailMessage As New Net.Mail.MailMessage()
myMailMessage.From = New Net.Mail.MailAddress(fromEmail)
myMailMessage.To.Add(toEmail)
[code]......
I have been able to find out how to send an email using smtp with an image as an attachment, but the problem with this, is that, as a txt message, it comes up as something like [Attachment removed] or something. I need to be able to send my cell phone a picture message, not just an attachment. [Code]
View 4 RepliesI'm making an application in which clients can send an SMTP email. In this application a client must select their internet provider, this possibilty already works. While testing it I tried to deactivate the SMTP.Credentials in which a username and password must be entered. Deactivating/romoving this line has no effect on sending the emails.?. I tested it on my office and at home, with 2 different providers. All mails were send.
My question: Is SMTP.Credentials required to send an email or not? What effects can deleting this line have?
CODE:
Mail.From = New Net.Mail.MailAddress(test@gmail.com)
Mail.To.Add("exc@gmail.com")
Mail.Subject = "Test"
[code]....
i'm tying to send email in my application directly by the smtp server but the server doesn't allow me to do that.The application its used by everyone in the company, so i set the smtp client UseDefaultCredentials to True, but the server replies with this when i try to send an email:[code].....If i set the credentials by hand, the server sends the email. So my problem is how to make this work to everyone? I don't want to have one public/friend var all time in the application with the credentials of the current user?
View 9 RepliesI get an error on SMTP.Send(MyMailMessage) saying 'Failed to send'
My
Dim MyMailMessage As New MailMessage()
ProgressBar1.Value = 30
MyMailMessage.From = New MailAddress("MyGmailEmail")
MyMailMessage.To.Add("MyEmail")
[Code]...
I have an app that sends emails out perfectly. I now need to know if it is possible to receive emails via my smtp server?
View 12 Replieshow can i send an email in Visual basic? i have tried and i cannot get my code to configure with smtp.gmail.com... I need some code to do this. If it is not worth it, it is not fun - you say programmers are boring but i say they are worth it.
View 6 Replieslook at this code and tell me what I'm doing wrong and what needs to be entered in order to finish this program,
[Code]...
I am trying to send an email through following code
CODE
Dim MyMailMessage As New MailMessage()
'From requires an instance of the MailAddress type
MyMailMessage.From = New MailAddress("a@gmail.com")
[Code]....
NOTE : I have tried SMTPServer.Port = 587 too but still its not working
I'm writing a mail component for a VB.Net app, and need to handle mails differently that are "Sent on Behalf" of someone. Although the Outlook Object Model exposes "SentOnBehalfOfName", it doesn't expose the email address for that party. Supposedly it's in the "OtherHeaders" field of the SMTP header, but I don't see an easy way to get to those through the Mailitem object. Am I missing something simple?
View 2 RepliesI have written a VB.NET receivables application that takes an invoice number as a parameter from the EBS. I create a PDF of the invoice and use SMTP to generate an email to the vendor, attaching the PDF. I can attach other documents if my program can look them up. It works fine.
My client now is requesting to be able to attach other documents manually to the automatically-generated email. Is there any way to stop in the middle of the process to allow this? [code]...
I am working on an email that someone will send from one of our main sites requesting an account password.I am using System.Net.Mail.MailMessage to create the email and then sending it using System.Net.Mail.SmtpClient.[code]
View 4 RepliesI have looked it up and not found anything other than you need to upgrade your account to do it. Is this true? If not how would i do this?
View 3 RepliesI'm trying to create an email sender. I want the user to define the smtp host and the smtp port in an option window, and then export them to My.Settings and well, when I try to send the mail nothing happens.
Send button: (there's more but I guess this is whats failing)
and for the option window
CODE:
I already know how to send emails using smtp with gmail and I need to know how to reveive emails.
View 11 Repliesthis is driving me absolutely crazy. I am trying to send an email through a web service written in C# through GoDaddy's servers (smtp.secureserver.net) but for some reason it's not working. Here's my code:
public static void SendMessage(string mailFrom, string mailFromDisplayName, string[] mailTo, string[] mailCc, string subject, string body)
{
try
[code]....