smtpclient

I am trying to connect an embedded device to smtp.gmail.com:465 using tls1.2 with WolfSSL. The library creates and sends the following clientHello message and receives a handshake failure. 16 03 03 00 4f 01 00 00 4b 03 03 2e 2a ec 85 7f 15 dd 09 5f 22 d1 53 82 60 d7 80 67 28 aa 67 48 ce f0 71 ab 63 d0 b2 3e 55 3a 05 00 00 14 c0 27 c0 23 c0 0a c0 09 c0 07 c0 08 c0 14 c0 13 c0 11 c0 12 01 00 00 0e 00 0d 00 0a 00 08 04 03 02 03 04 01 02 01 Here is the received message; 15 03 03 00 02 02 28 As can be seen in the wireshark screenshot , the following cipher suites are supported by the client; TLS

I am trying to send email when a new user registrates or forgot his password. I am working on a linux and the app was developed with node.js. Error: [Error: 140020013401920:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol: 014-03-17T04:23:22-0700 app.0: debug: cleared heartbeat timeout for client VP5heQmQKpirWe81qegF 2014-03-17T04:23:22-0700 app.0: debug: set heartbeat interval for client VP5heQmQKpirWe81qegF 2014-03-17T04:23:28-0700 app.0: { name: 'anyUser', 2014-03-17T04:23:28-0700 app.0: { [Error: 140020013401920:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown

I want to Run Below code without NetworkCredential nc = new Net.NetworkCredential("USERNAME", "PASSWORD"). BY using Only Exchange Host (Server Name) And Port Im Getting Error For this code : Mailbox unavailable. The server response was: 5.7.1 Client does not have permissions to send as this sender protected void SendEmail(object sender, EventArgs e) { SmtpClient smtpClient = new SmtpClient("ExchangeServerName",25); MailMessage message = new MailMessage(); try { MailAddress fromAddress = new MailAddress("bala@OfficeName.com", "From Me"); MailAddress toAddress = new MailAddress("bala@OfficeName

Simple concept here. This is for a site being built using MVC 3 and Entity Framework 4. After a user registers on the site, an email is sent to their email address. I first implemented this using SmtpClient.Send() and it worked fine. Then I got the bright idea to try sending the email asynchronously. I'm experiencing issues with the two async approaches I've tried. First implementation (from this unanswered post: https://stackoverflow.com/questions/7558582/how-to-dispose-using-smtpclient-send-and-asynccallback ): public bool Emailer(){ . . . using (var smtpClient = new SmtpClient()) {

If my Gmail account has Access for less secure apps disabled , then my application can't send emails through this account . Instead I get " The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required " exception. Here Google explains that by disabling Access for less secure apps , only apps that use modern security standards can sign in . What are those modern security standards my code needs to implement and can you show me how to implement them with an example ( not sure if it matters, but my app and Gmail account

I'm sending MailMessages with an SmtpClient (being delivered successfully) using an Exchange Server but would like my sent emails to go to the Sent Folder of the email address I'm sending them from (not happening). using (var mailMessage = new MailMessage("fromaddress@blah.com", "toaddress@blah.com", "subject", "body")) { var smtpClient = new SmtpClient("SmtpHost") { EnableSsl = false, DeliveryMethod = SmtpDeliveryMethod.Network }; // Apply credentials smtpClient.Credentials = new NetworkCredential("smtpUsername", "smtpPassword"); // Send smtpClient.Send(mailMessage); } Is there a

I'm trying to develop an app that sends email, and our internal network is locked down pretty tight, so I can't relay using our internal mail servers. Has anyone ever used something like no-ip.com? Are there any other alternatives? If you just need to check that the e-mails are being sent to the correct addresses and with the correct contents, the easiest way is to use a drop folder by editing the app or web.config file: <system.net> <mailSettings> <smtp deliveryMethod="SpecifiedPickupDirectory" from="me@myorg.com"> <specifiedPickupDirectory pickupDirectoryLocation="C:\TestMailDrop"/> </smtp>

I am writing an application that will need to send a massive amount of emails to our students who will be selected from our database (each email will be personalized to the extent that will include their name, course of study etc...so needs to be sent one at a time). I could do this looping over an SmtpClient, but I'm afraid that with the numbers I'm trying to send, I'll ultimately run into timeout issues or my thread being killed because of lack of machine resources. At this point I'm just looking for suggestions of a better way to handle this, or if looping over SmtpClient is an ok solution,