Email & SMTP - Program To Send Very Simple Text Email Messages
Feb 17, 2009
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)
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 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)
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.
I'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 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].......
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]...
i 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.
This 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)
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]
I'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?
make an app for me that just sends an email of text from a textbox. if u have a source to one or anything like that because i have tried over and over and it just doesnt work
how would i implement a way that i would not hard code the email message that the application send to email recipients? how will i also include email message formatting (text in bold, italic, etc.)?
I wouuld like to open outlook with new email with provided subject line, body message and attachment but no email address. User will enter the email address and click send . How can I do this?
I used following code but it gives me error for to address
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?
i can send email through vb.net behind code but how do i implement so that the recipient cannot see the sender email and only the name?i had done alot of research but i can't find any solution about this problem
I'm using the TcpClient and TcpListener classes to read/write to the network when a request comes in on port 25. All I'm trying to do at the moment is make it so that my server program can receive SMTP messages from other SMTP servers. I've tested in Telnet - if I connect to my own IP on port 25 and type EHLO, MAIL FROM, RCPT TO, DATA etc then all works as it should and the details I entered are logged by the program (it doesnt do anything about delivering these details/email yet).all looks good... but then when I try and just send an email to my domain from my work account I can see that a connection is made to my program and the string "EHLO workdomain.com " is received by my program - my program responds to the remote SMTP server with "250-mydomain.com Hello" and then a CrLF and then "250-OK". After that point however, my app does not receive anything further at all from the server at work. I'm guessing I am doing something wrong with the data I'm returning when it sends EHLO but can anyone point me in the correct direction?
I was using telnet to test with, it seems that I have made it work only with telnet.In telnet each time I type a key the data is passed to the server, however with a real SMTP server it just sends each entire command in one go. So after altering my server a little I can now get it to respond with the 250-OK which I thought it already was doing.. but it still doesnt work. The remote server just sends EHLO and then thats it nothing more.Something interesting, at the moment I am ending all of my responses to the remote server with VbLf - if I change this to VbCrLf (which is what I believe it is meant to be according to the SMTP standard) then I get an infinite amount of empty strings sent to my program (or perhaps some other character that just shows as an empty string in intellisense when stepping through the code). Changing it back to just vbLf or ControlChars.Lf makes it go back to just sending EHLO and then nothing else..
I want to send an email using the default email client. If this is not possible, then Outlook will be the client of choice.* I want to be able to send attachments.* I would like to use Read Receipt on outgoing emails if possible.
I wanted to create a simple Visual Basic 2008 program that can log me into my email with a click of a button...what would a the code for the button look like?
What is the best way to do this? create a form which sends emails. I want to use the System.WebMail class and not MAPI which I've seen on this forum. I also need a SMTP Server if I'm not mistaken and can anyone suggest a good smtp server I can use. Also user authentication when sending an email this must be secure.
