System.Net.mail MAIL FROM: ENVID=
The SMTP spec allows you to set an envelopeid in the MAIL FROM command. ex: "MAIL FROM: [email protected] ENVID=abc@123$456&789" How do you use the system.net.mail framework library to set the SMTP envelope id? ...
system.net.mail
Cannot use smtpclient to send mail with localhost iis site
I have an asp.net mvc app running on a local iis website that is failing to send mail using SmtpClient from System.Net.Mail. I am trying to send a mail to my hotmail address and I get a socket exception. Any idea what the problem might be? using(var message = new MailMessage()) { message.From = new MailAddres...
What is the best method for formatting email when using System.Net.Mail
Hi I'm using System.Net.Mail to send some HTML formatted emails. What is the correct method for inserting css into the email message? I know I can apply formatting to each item, but I'ld rather use style sheets.. EDIT I should have mentioned that this is for an internal application, and I expect 99% of users to be using Outlook or oth...
System.Net.Mail.MailMessage Fields Dictionary
Hi, We’re currently in the process of updating the email dispatch part of our application to replace the deprecated set of classes under System.Web.Mail with the System.Net.Mail classes. The changes have been fairly straightforward but we’ve hit an obstacle today in that we were trying to port the contents of the System.Web.Mail.Mail...
Why can SmtpClient.SendAsync only be called once?
I'm trying to write a notification service (for completely legit non-spam purposes) in .NET using SmtpClient. Initially I just looped through each message and sent it, however this is slow and I would like to improve the speed. So, I switched to using 'SendAsync', but now get the following error on the second call: An asynchronous ca...
System.Net.Mail and =?utf-8?B?XXXXX.... Headers
I'm trying to use the code below to send messages via System.Net.Mail and am sometimes getting subjects like '=?utf-8?B?W3AxM25dIEZpbGV...' (trimmed). This is the code that's called: MailMessage message = new MailMessage() { From = new MailAddress("[email protected]", "Service"), BodyEncoding = Encoding.UTF8, Body = body...
PickupDirectoryFromIis, Sender property and SMTP MAIL FROM envelope
Hi, When you send an email using System.Net.Mail you can set the SMTP MAIL FROM envelope by using the MailMessage.Sender Property. If you set the smtp network deliveryMethod property to be "Network", the MAIL FROM envelope is set using the Sender value. If you set the smtp network deliveryMethod property to be "PickupDirectoryFromIis", ...
Error: Server does not support secure connections.
Ok, I have been using the following script for over a year now to send email (via gmail) from my host, and it has worked just fine (the Settings.Get() just return strings): public class Email : SmtpClient { public MailMessage Message { get; private set; } public Email(string to, string from, string subject, string body) : base(...
How do I add an attachment to an email using System.Net.Mail?
I have an excel document represented as a byte[] and I'm wanting to send it as an attachment in an email. I'm having a bit of trouble constructing the attachment. I can create an Attachment which has the following constructors: (Stream contentStream, ContentType contentType) (Stream contentStream, string name) (Stream contentStream, s...
Is it possible to use SmtpClient.DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory on Development Server?
I do not have access to an IIS development server -- only the production one. So, for my development, I have to use the ASP.NET Development Server thats built into Visual Studio. I get Failure to send message when I have the SMTP client configured this way. SmtpClient.Host = "localhost"; SmtpClient.DeliveryMethod = SmtpDeliveryMethod....
Problem while sending mail by System.Net.Mail C#
This is my mail sending code. I was getting "There is Invalid character in Mail Header" error.When i changed my Computer Name some shortest name. The problem solved. But in my domain whole computer names like "04500-ab04545.xxxdomain.gov.tr" so I need to find another solution for this problem. So I cant give a static computer name while...
Porting System.Web.Mail functionality to System.Net.Mail
The following function works perfectly: protected void SendWebMailMessage(string DisplayName, string From, string ReplyTo, string To, string Subject, string Body, string Attachments) { System.Web.Mail.MailMessage msg = new System.Web.Mail.MailMessage(); msg.Fields.Add("http://schemas.microsoft.com/cdo/con...
asp.net net.mail - route all emails to a different email address in debug mode
Is there anyway to have all emails go to a different address when System.Web.HttpContext.Current.IsDebuggingEnabled is true? Or do I need a new class which I use to send email everywhere? ...
Programmatically Verify an email message reached an exchange mail box
I have a job that runs which sends out emails to our users to which starts off a work flow process in our company. Periodically, a user will swear up and down that they didn't receive the email - though, when we go to the mail administrator to pull an exchange report, 10 times out of 10 it's in their deleted items. :P I'd like to be ab...
How do I set the SMTP ENVID using system.net.mail
The SMTP spec allows for an envelopeid to be specified in the "MAIL FROM" command. This associates an id in the email envelope that can be used by MTAs for determining deliverablility of the message. When using the .NET framework library system.net.mail. I cannot seem to find a way to set the SMTP envelope id. This is the second time I...
Encrypting/Decrypting an SMTP Password in a Client/Server App
I have a client app that needs to save a username/password for an SMTP Server. This data will be going into SQL Server 2005, and consumed by my server app. The server app will use the System.Net.Mail namespace to send e-mail messages using the supplied credentials (and from that user's e-mail address). How can I encrypt/decrypt the passw...
.NET Best Method to Send Email (System.Net.Mail has issues)
This seems to be pretty straight forward. I need to send email from some ASP.NET applications. I need to do this consistently without strange errors and without CPU utilization going through the roof. I'm not talking about mass emailing, just occasional emails. System.Net.Mail appears to be horribly broken. The SmtpClient does not issue...
"Unable to read data from the transport connection: net_io_connectionclosed." - Windows Vista Business and SMTP
Unable to test sending email from .NET code in Windows Vista Business. I am writing code which I will migrate to an SSIS Package once it its proven. The code is to send an error message via email to a list of recipients. The code is below, however I am getting an exception when I execute the code. I created a simple class to do the ma...
Cant emails through exchange: An existing connection was forcibly closed by the remote host
I just noticed that some of the email operations in my code have been failing and am trying to fix it up, however I keep getting the following error: System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote...
Why do I get 5.5.4 Invalid Address error?
I tried to send an email using the following code: MailMessage message = new MailMessage(); message.From = new MailAddress(fromMailAddress.Trim()); message.To.Add(new MailAddress(toMailAddress.Trim())); message.Subject = subject; message.Body = body; message.SubjectEncoding = System.Text.Encoding.UTF8; message....