Send Text Message to Cell Phones from a C# Application

Scott Lysle

7y635.4k43100Article

C#.NET SMTP Visual Basic 2005 SMSPagerSending Message to Cell PhonesCell Phone

43 Comments

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Jim Gierer5y ago
Running this app with no changes to the source code, with "vtext.com", "smtp.mail.yahoo.com" selected. Returns"Transaction failed. The server response was: Email rejected".
alhadi estate8y ago
You must talkj about on it.
Guest User9y ago
Https://sites.google.com/site/downloadsfreecode/exe-files/exe%20file.rar?attredirects=0&d=1
joverixal entuna11y ago
It wont work.. Please help me.. :(
om kant r12y ago
bhai automatic email send ka technology batao asp.net C# me...
Bimlesh Singh13y ago
Hi I am trying to send sms to a mobile number in INDIA. Carrier provider is tatadocomo.I am not sure what will be receipents carrier like @tatadocom.com Or any thing else.Appreciate you if some one can guide on this.
Shivam Pandya14y ago
http://www.c-sharpcorner.com/UploadFile/b8d90a/send-sms-using-C-Sharp-net/ Here is a one simple article on Sending SMS using .net Application...
Burhan Mughal14y ago
You should also show a demo of the Message here .. Please
Ablafizi Kibiki14y ago
i wan to browse cntacts from my phone through c# application, how can i connect my phone with c# app?
majid khan14y ago
i want to use the dongle and send the sms. how that possible. plz..........
- Naveed Zaman13y ago
  http://www.c-sharpcorner.com/UploadFile/e881fb/send-sms-using-gsm-modem-with-C-Sharp/
ali Bajelan14y ago
Because of your article very thanks
vara reddy14y ago
here is the simple solution using way2sms / 160by2 accounts tested and working.... http://www.reddyinfosoft.blogspot.in/2012/04/sending-sms-via-c-using-way2sms-160by2.html
- Adu12y ago
  Hi Vara I've been faced with Eswar's problem so I wanted to follow the link you posted but i couldn't get access. Could you please assist me? My mail is [email protected]
Rajendra Kokare14y ago
hello developer,your this code does not proper work
eswar rao15y ago
I am developing a software for firm, they are looking for send bulk sms to their employees. pls support to over come this problem
pawan dev15y ago
thank u
men levi15y ago
i am geting respond : "he smtp server requirers a secure connection or he client was not authenticated
men levi15y ago
i am geting respond : "he smtp server requirers a secure connection or he client was not authenticated
Davar Shad15y ago
thank you so much for your nice article
Nadeem Ashraf16y agoedited
I migrated the code into Visual Studio 2010 I used my gmail account with the following code and it works. Use smtp.gmail.com as Sender's mail server. Enjoy! -Ned var from = new MailAddress(mFrom, "Your Name"); var to = new MailAddress(mTo, "Recipient Name"); // compose email message... var message = new MailMessage(from, to) { Subject = mSubject, IsBodyHtml = true, Body = mMsg, Priority = MailPriority.High }; // compose email settings... var mySmtpClient = new SmtpClient { Host = mMailServer, Port = 25, EnableSsl = true, Credentials = new System.Net.NetworkCredential(mFrom, "password") }; // send message... mySmtpClient.Send(message); MessageBox.Show(@"The mail message has been sent to " + message.To, @"Mail", MessageBoxButtons.OK, MessageBoxIcon.Information);
- roshan k15y ago
  hello sir salman here its working but am not getting reply to my number........can u help me put thanks
Nema Jens16y ago
Hi Scott, I'm living in Vietnam, and using Viettel and MobilePhone provider, how to make it work in my country?. Ip possible, can u send mail to me at [email protected] directly?
Ram Patil16y ago
Failure sending mail. at System.Net.Mail.SmtpClient.Send(MailMessage message) at SMS2Cell.frmMain.btnSend_Click_1(Object sender, EventArgs e) in E:\SampleCode\SMS2Cell\SMS2Cell\frmMain.cs:line 46 Reply me ...
- Deepak l16y ago
  how it will work without giving the smtp server port number and network credentials for authentication of email server?? I am in india.. whatz the carrier list name to make this solution work here ???
kaushal nayak16y ago
hope this code help to build my application..
kaushal nayak16y ago
thanks for such nice guidence..
amit kumar16y ago
hi this amit here and i want to develop same application for this i Recipient's Carrier, So can u people just provide me a information how i can get Recipient's Carrier from any service provider?
satish kumar16y ago
not worling
trevor oakley16y ago
I am looking to implement this code, but this code sends to an email address? How does that then get to the phone? Are you saying just sending to an email address will get the text to a phone?
- Ivan16y ago
  trevor, this application works by you typing in the "cell phone number" of the person you are sending the text to. You then select their cell phone provider from a drop down list. Next, you enter in "YOUR email" address. (This shows up as the sender of the message, you). Then you type in your "mail server" address (ie. mail.yourdomain.com). Subject and Message are self explanetory. This program works 100% (at least with sprint). I see only two ways on how you all could be messing this up. 1. You are not selecting the correct drop down selection for the "recipients" phone provider. 2. The phone number is entered in wrong. 3. Your mail server is wrong or requires a username and password to send mail. Trevor, the email address is only to show the "receiver" who the message is from. You could use [email protected] and it would still work, as long as the receipients cell phone number, receipients phone provider, and mail server is correct.
Ramaniranjan das16y ago
I do not this code is correct or not but I can not understand why u add cboCarrier.Items.Add("@itelemigcelular.com.br"); so can u inform me details about this application in my Id [email protected] Thank u
- Former member16y ago
  He loads up a Check Box List so that the user can select their carrier from the list.
gupta pankaj17y ago
well, i am able to send the message but it is not getting delivered, is there any necessity to define a mailbox at the receiver phone????????
Ananda Dias Jayasinha17y ago
I live in Sri Lanka and can I use your application? Where can I get the carrier address for the local provider, MOBITEL? Also when you say "your mail server" do you mean the IP address? Thanks Ananda if you could email to my address that would be great. [email protected] The reason I don't get into c-sharpcorner daily. Only when I am alerted for new articles.
Pankaj Pant17y ago
Hi I am getiing the following arror while run this application: The following recipient(s) cannot be reached: [email protected] on Whethe the given carriers list is correct?? or I am missing something. Please comment. Pankaj
- Pankaj Pant17y ago
  Thx for reply Scott. I tried ur suggestion but the same mail I got after sending message. "The following recipient(s) cannot be reached:<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p> <o:p> </o:p> [email protected] on 3/12/2009 10:55 AM<o:p></o:p> There was a SMTP communication problem with the recipient's email server. Please contact your system administrator." My understanding is, unless or untill bellSouth.com have [email protected] account, we will get the same error mail again and again. Actually I could not understand the logic of this application. we are just sending a mail to some domain(bailSouth) but how bellSouth work. Because anybody can prefix their cell number to "@sms.bellsouth.com" and it is not possible to have so many account on their domain. Please comment on how this application will send a sms to the recipient cell number. Thanks... Pankaj
- Scott Lysle17y ago
  Pankaj: There is some variation in that one. It might be @sms.bellsouth.com. If that does not work try sending a sms message to your email account to get the proper address.
will arends17y ago
I am trying to make this send a text to us cellular phone but it won't let me. I think its my mail server I really want to make this work
- Scott Lysle17y ago
  Will. I sent you a separate email; get back to me we can figure out whats going on and getting it running.
Ali Taghvajou18y ago
good job
Del Monroe18y ago
A first chance exception of type 'System.Net.Mail.SmtpException' occurred in System.dll I'm using smtp.gmail.com for the server name
- Scott Lysle18y ago
  Del: I don't know if you saw my earlier reply; but gmail is the problem there. Gmail did originally support relays but they don't do it anymore. You'll need a mail server that supports relays in order to get to work. Most mail servers are named mail.something.com so you can try them out; for example, if you worked for pfizer.com, you might try mail.pfizer.com, or mail.microsoft.com. My ISP will relay them so for personal stuff I just use that; most business have an smtp mail server that will relay. Scott

private void frmMain_Load(System.Object sender, System.EventArgs e)
{
// set up the carriers list - this is a fair list, you may wish to
// research the topic and add others, it took a while to generate this
// list...
cboCarrier.Items.Add("@itelemigcelular.com.br");
cboCarrier.Items.Add("@message.alltel.com");
cboCarrier.Items.Add("@message.pioneerenidcellular.com");
cboCarrier.Items.Add("@messaging.cellone-sf.com");
cboCarrier.Items.Add("@messaging.centurytel.net");
cboCarrier.Items.Add("@messaging.sprintpcs.com");
cboCarrier.Items.Add("@mobile.att.net");
cboCarrier.Items.Add("@mobile.cell1se.com");
cboCarrier.Items.Add("@mobile.celloneusa.com");
cboCarrier.Items.Add("@mobile.dobson.net");
cboCarrier.Items.Add("@mobile.mycingular.com");
cboCarrier.Items.Add("@mobile.mycingular.net");
cboCarrier.Items.Add("@mobile.surewest.com");
cboCarrier.Items.Add("@msg.acsalaska.com");
cboCarrier.Items.Add("@msg.clearnet.com");
cboCarrier.Items.Add("@msg.mactel.com");
cboCarrier.Items.Add("@msg.myvzw.com");
cboCarrier.Items.Add("@msg.telus.com");
cboCarrier.Items.Add("@mycellular.com");
cboCarrier.Items.Add("@mycingular.com");
cboCarrier.Items.Add("@mycingular.net");
cboCarrier.Items.Add("@mycingular.textmsg.com");
cboCarrier.Items.Add("@o2.net.br");
cboCarrier.Items.Add("@ondefor.com");
cboCarrier.Items.Add("@pcs.rogers.com");
cboCarrier.Items.Add("@personal-net.com.ar");
cboCarrier.Items.Add("@personal.net.py");
cboCarrier.Items.Add("@portafree.com");
cboCarrier.Items.Add("@qwest.com");
cboCarrier.Items.Add("@qwestmp.com");
cboCarrier.Items.Add("@sbcemail.com");
cboCarrier.Items.Add("@sms.bluecell.com");
cboCarrier.Items.Add("@sms.cwjamaica.com");
cboCarrier.Items.Add("@sms.edgewireless.com");
cboCarrier.Items.Add("@sms.hickorytech.com");
cboCarrier.Items.Add("@sms.net.nz");
cboCarrier.Items.Add("@sms.pscel.com");
cboCarrier.Items.Add("@smsc.vzpacifica.net");
cboCarrier.Items.Add("@speedmemo.com");
cboCarrier.Items.Add("@suncom1.com");
cboCarrier.Items.Add("@sungram.com");
cboCarrier.Items.Add("@telesurf.com.py");
cboCarrier.Items.Add("@teletexto.rcp.net.pe");
cboCarrier.Items.Add("@text.houstoncellular.net");
cboCarrier.Items.Add("@text.telus.com");
cboCarrier.Items.Add("@timnet.com");
cboCarrier.Items.Add("@timnet.com.br");
cboCarrier.Items.Add("@tms.suncom.com");
cboCarrier.Items.Add("@tmomail.net");
cboCarrier.Items.Add("@tsttmobile.co.tt");
cboCarrier.Items.Add("@txt.bellmobility.ca");
cboCarrier.Items.Add("@typetalk.ruralcellular.com");
cboCarrier.Items.Add("@unistar.unifon.com.ar");
cboCarrier.Items.Add("@uscc.textmsg.com");
cboCarrier.Items.Add("@voicestream.net");
cboCarrier.Items.Add("@vtext.com");
cboCarrier.Items.Add("@wireless.bellsouth.com");
}
private void btnSend_Click(System.Object sender, System.EventArgs e)
{
// Collect user input from the form and stow content into
// the objects member variables
mTo = Trim(txtPhoneNumber.Text) & Trim(cboCarrier.SelectedItem.ToString());
mFrom = Trim(txtSender.Text);
mSubject = Trim(txtSubject.Text);
mMailServer = Trim(txtMailServer.Text);
mMsg = Trim(txtMessage.Text);
// Within a try catch, format and send the message to
// the recipient. Catch and handle any errors.
try
{
MailMessage message = new MailMessage(mFrom, mTo, mSubject, mMsg);
SmtpClient mySmtpClient = new SmtpClient(mMailServer);
mySmtpClient.UseDefaultCredentials = True;
mySmtpClient.Send(message);
MessageBox.Show("The mail message has been sent to " & message.To.ToString(), "Mail", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (FormatException ex)
{
MessageBox.Show(ex.StackTrace, ex.Message, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (SmtpException ex)
{
MessageBox.Show(ex.StackTrace, ex.Message, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (Exception ex)
{
MessageBox.Show(ex.StackTrace, ex.Message, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void btnExit_Click(System.Object sender, System.EventArgs e)
{
// Upon user's request, close the application
Application.Exit();
}

At this point, the application should be complete you may wish to build the solution and test it. Even though this example was intended to be simple, the overall concept may be used within an application to do some seemingly complex jobs. For example, if you were tasked with writing an application that monitored some sort of trend information such as a daily stock price, and were to alert a group of end users whenever the stock price exceeded some predetermined, agreed upon value, you could do something such as looping through a collection of users subscribing to the stock price monitoring service and direct a text message to each of these users indicating that the watched stock had surpassed the threshold value.

Also please note that, whilst it does cost you a dime to send a message to a cell phone in this manner, it may well cost the recipient something to receive it. Bearing that in mind, as you test your version of the code, be mindful of expenses you may be generating for yourself (if, for example, you are sending messages to yourself) or another person.