SMTP server and email FAQ at the ASP.NET Forums

A list of the most common issues seen (and experienced) with sending email from ASP.NET applications
http://www.asp.net/Forums/ShowPost.aspx?tabindex=1&PostID=314034

Discuss This FAQ Item
Got a question? Another Suggestion? Want to post your solution? Discuss it below.

New Post

problem in sending mail [ Reply ]
hello,

when ever i am trying to send email through smtp server they r going into inetpub/mailroot/badmail folder.
plese help me.

my code is as follows:

msg=new MailMessage();
msg.Priority=MailPriority.High;
msg.From="tanujareddy@rediffmail.com";
msg.To="tmythilee@yahoo.com";
msg.Subject="checking smtp service";
SmtpMail.SmtpServer="107.108.4.170";
SmtpMail.Send(msg);
Response.Write("mail Sent");

tanuja [ tanujareddy ( at ) rediffmail dot com ], 2005-05-18 21:38:05 #
- RE: problem in sending mail [ Reply ]
  what is name of smtpmail.smtpserver in local system and web site ? please....
  
  ashish [ ashishdamohiya ( at ) yahoo dot com ], 2010-06-02 20:31:14 #
  - RE RE: problem in sending mail [ Reply ]
    Hi,
    You need to get with your mail server admin to determine that.
    
    --Dave
    
    dave wanta [ dave ( at ) advancedintellect dot com ], 2010-06-03 05:26:03 #
problem in sending attachmentsl [ Reply ]
hello,

i am trying to send attachmets its giving error as

[HttpException (0x80004005): Invalid mail attachment 'C:\Documents and Settings\tanujaa\Desktop\wiprojobcode.txt'.]
System.Web.Mail.MailAttachment.VerifyFile()
System.Web.Mail.MailAttachment..ctor(String filename, MailEncoding encoding)
ezeetracker.WebForm4.Button1_Click(Object sender, EventArgs e) in d:\ezeetracker\webform4.aspx.cs:71
System.Web.UI.WebControls.Button.OnClick(EventArgs e)
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
System.Web.UI.Page.ProcessRequestMain() +1277

please help me.

tanuja [ tanujareddy ( at ) rediffmail dot com ], 2005-05-18 22:01:19 #
- RE: problem in sending attachmentsl [ Reply ]
  hi tanuja,
  
  i am dealing with the same problem..
  its going to be solve shortly..
  
  i'll give u solution in next mail.
  
  bye
  
  Abhishek [ abhishekjain123 ( at ) gmail dot com ], 2006-11-21 21:15:20 #
  - RE RE: problem in sending attachmentsl [ Reply ]
    hi, i'm facing this problem.if there is ne solution pls frwd me that.its urgent.
    
    shri [ shriparna_ghosh ( at ) rediffmail dot com ], 2007-04-12 23:23:03 #
Error while sending mail [ Reply ]
Hi,

I got error when i try to send email through asp.net application.

My code is as fallows
--------------------------------------------------------

MailMessage emailtest = new MailMessage();
emailtest.From = Txtfrm.text;
emailtest.To =Txtto.Text;
emailtest.BodyFormat = MailFormat.Html;
emailtest.Body = "Test Body";
emailtest.Subject = "Test Mail";
emailtest.Priority = MailPriority.High;
SmtpMail.SmtpServer = TxtServer.Text;
SmtpMail.Send(emailtest);

Error desription as fallows

-------------------------------------------------------

The specified module could not be found.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.FileNotFoundException: The specified module could not be found.

Trace information is as fallows

Stack Trace:
------------------------------------------------------------

[FileNotFoundException: The specified module could not be found.]
System.RuntimeType.CreateInstanceImpl(Boolean publicOnly) +0
System.Activator.CreateInstance(Type type, Boolean nonPublic) +66
System.Activator.CreateInstance(Type type) +7
System.Web.Mail.LateBoundAccessHelper.CreateInstance()
System.Web.Mail.CdoSysHelper.Send(MailMessage message)
System.Web.Mail.SmtpMail.Send(MailMessage message)
WebApplication1.WebForm1.BtnMail_Click(Object sender, EventArgs e) in c:\inetpub\wwwroot\webapplication1\webform1.aspx.cs:289
System.Web.UI.WebControls.Button.OnClick(EventArgs e)
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
System.Web.UI.Page.ProcessRequestMain()

...........................................................................

The same code is working on my collegue system.

I compared all the iis settings and firewall settings of my system with my collegue system. After configuring same settings also i'm not able to send the mail from my application.

can u please advice me where i did mistake or whts the problem with my system.

regard's
Venu Gopal.

venu [ meetgorantla ( at ) yahoo dot com ], 2006-01-03 23:42:44 #
Problem in sending mail. [ Reply ]
Hello

I am trying to send the message through virtual smtp server, but gets error of authentication.

Setup
--------

I have a seperate mail server.

And i am developing asp.net 2.0 based software on other machine. I am in the process of making email module through asp.net 2.0 version through system.net.mail namespace.

My mail server is configured in a way that it requires authentication, hence on all the computers we had to click the option. < my mail server requires authentication> on outgoing tab.

Now while sending mail through this asp.net 2.0 system, it gives error while sending messages as <client was not authenticated. authentication required.>

can anybody help me out to solve this problem.

Thanks in advance
jitendra

Jitendra [ jitendra ( at ) tsilbrd dot com ], 2006-08-15 23:15:47 #
Error on desktop attachments [ Reply ]
On attaching a document from desktop it giving me a error message as

Invalid mail attachment 'C:\Documents and Settings\friends\Desktop\DSC00082.JPG'.

I dont know why its happen

Any alternate Way..
Thanks in advance

Mahesh [ Mahesh1983it ( at ) gmail dot com ], 2006-11-19 20:00:10 #
mail send [ Reply ]
Hi
I m sending a mail in ASP.NET. Mail is going properly but i want a format like..
Hello Anand,
Your maeegae
his is something.

what shoul i do for that plz help me. my code is below.......

mailMessage.Body = " Hello " & strMenteeName & "," & vbCrLf
mailMessage.Body += " Mentor Assigned to you. " & vbCrLf
mailMessage.Body += " Mentor Name: " & strMentorName & vbCrLf
mailMessage.Body += " Mentor Title: " & strMentorDesc & vbCrLf
mailMessage.Body += " Mentor Location: " & strMentorGeoLocation & vbCrLf
mailMessage.Body += " Mentor EmailId: " & strSendEmail & vbCrLf

Anand [ anand2682 ( at ) gmail dot com ], 2007-01-11 01:15:48 #
Problem with mails [ Reply ]
Hi,

I have a problem with my local SMTP.

I am using Asp.Net for my application. In this application, I have the functionality of sending mails for different purposes. My problem with mails is, when I am using the application in server its working fine. But the same functionality in my local system is not working. All the sent mails are appeared in the queue folder. How can I send mails from local system as in server?

Thanks in advance

Kiran.

Kiran [ kiran ( at ) winitsoftware dot com ], 2007-01-25 02:17:39 #
Problem in sending mail with attachment [ Reply ]
plz reply quickly

Ramesh [ factorh ( at ) yahoo dot com ], 2007-07-06 00:50:44 #
Problem in sending mail with attachment [ Reply ]
plz reply quickly

Ramesh [ factorh ( at ) yahoo dot com ], 2007-07-06 00:51:29 #
mail not going [ Reply ]
in development server its working fine . But when i upload to production server it was not working .

it very urgent

pls help

mahesh [ chilakamahesh ( at ) gmail dot com ], 2007-07-12 07:55:44 #
- RE: mail not going [ Reply ]
  did u get any ans.
  if yes then pls do reply me at vinod.narayankar@gmail.com
  
  vinod [ vinod dot narayankar ( at ) gmail dot com ], 2008-08-31 10:48:43 #
  - RE RE: mail not going [ Reply ]
    if u got any ans reply me at rohan.bhadekar@gmail.com
    
    rohan [ rohan dot bhadekar ( at ) gmail dot com ], 2009-04-15 03:42:52 #
Mail just not doing anything [ Reply ]
Am trying to create a simple contact form. Page runs fine with no error message but the emails just arnt arriving in my inbox. Here is a copy of the code with email and password changed for obvious reasons.

Dim message As New MailMessage(txtEmail.Text, "username@myurl.com")

message.Subject = txtSubj.Text

message.Body = "Name : " & txtName.Text & vbNewLine & "Company : " & txtCompany.Text & vbNewLine & "Email: " & txtEmail.Text & vbNewLine & "Subject : " & txtSubj.Text & vbNewLine & "Message : " & txtMessage.Text

Dim mailClient As New SmtpClient()

Dim basicAuthenticationInfo As New NetworkCredential("username", "password")

mailClient.Host = "mail.googlemail.com"
mailClient.UseDefaultCredentials = False
mailClient.Credentials = basicAuthenticationInfo
mailClient.Send(message)

Have rewritten this code every which way I can imagine. If anyone has any ideas please let me know before I smash my machine to pieces and move to Tibet to become a monk just so I never have to program again...

Thanks

Huw Davies [ huwd ( at ) vieswebdesign dot com ], 2007-12-29 03:48:04 #
email not sent to destination.. [ Reply ]
i am trying to send email through ASP.NET webpage.
smtp server name is "localhost". when the program is run, it displays the msg that email has been sent but it does not reach the destination i.e. the intraserver...

plz reply......

sonia [ sonia_rzz ( at ) yahoo dot com ], 2008-06-22 23:29:30 #
- RE: email not sent to destination.. [ Reply ]
  using system.web.mail;
  
  MailMessage objmail = new MailMessage();
  objmail.To = xxx@yahoo.com;
  objmail.From = receivermail@xx.com;
  
  objmail.Subject = "Subject";
  objmail.Body = "hi sonia how r u .. after u will reply me.............."
  objmail.Priority = MailPriority.High;
  try
  {
  SmtpMail.Send(objmail);
  
  Response.Write("Your mail has been successfully sended");
  }
  catch (Exception er)
  {
  Response.Write("Send Failure:" + er.ToString());
  }
  
  Ravi Kumar [ ravikumar dot prof ( at ) gmail dot com ], 2009-02-11 00:19:02 #
last character getting truncated in each line in SMTP sending [ Reply ]
Hi

When i receive an email,i am getting the last character trucated in each line i saw.this did not happen to me previuosly.allof a sudden this was happening always in SMTP Send.

Could anyone Please let me know what exactly is problem.In code i am using to '\n\r' to join concatenate them.
now i hve changed it to '\r\n' ,it is working.Just want to know what exactly is the problem.

vijayendra kumar [ vijayendra dot kandi ( at ) wipro dot com ], 2009-10-09 00:33:20 #
Mail not working on server with attachement [ Reply ]
When i try to send mail with Attachement from local machine then working Fine, but when i try to Send mail From Server, I did not get any email. if i get mail but i did not get attached file. Can you please help me.

naresh kumar [ n dot kumar ( at ) vtlglobal dot com ], 2010-06-29 07:35:33 #

	System.Web.Mail, OH MY!
	Complete FAQ for sending email in ASP.NET (or trying to) with System.Web.Mail
	If you are using .NET 2.0 be sure to check out my System.Net.Mail site