I'm trying to set up a email notification for a asp.net project, but it doesn't seem to work. On localhost it gives me the following error
5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM
while on azure it triggers a suspicious login message over and over.
I tried multiple suggestions:
port 25 instead of 587
UseDefaultCredentials true or false
enable and disable SSL
nothing seems to work. The suspecious activity mail is the closest I got so far. Here is my code
var client = new SmtpClient();
client.Host = "smtp.office365.com";
client.UseDefaultCredentials = false;
client.Port = 587;
client.EnableSsl = true;
client.Credentials = new NetworkCredential("Rachelle.XXXX#outlook.com", "password");
client.DeliveryMethod = SmtpDeliveryMethod.Network;
var message = new MailMessage("Rachelle.XXXX#outlook.com", "Rachelle_xxxxx#hotmail.com");
message.Subject = "a ticket has been changed";
message.Body = "Hi there, a ticket has been changed on Cronos. Please check Cronos for more details";
message.BodyEncoding = Encoding.UTF8;
message.IsBodyHtml = true;
try
{
client.Send(message);
return message;
}
Related
Hello my name is Prince...im trying to implement a register module to send a confirmation email to my client email address in asp.net. I'm using SMTP client to implement this. I used the following code:
using (SmtpClient smtp = new SmtpClient())
{
using (MailMessage mm = new MailMessage("onukwilip#gmail.com", Email.Text.Trim()))
{
mm.Subject = "Dummy";
mm.Body = "Body";
mm.IsBodyHtml = false;
smtp.Host = "smtp.gmail.com";
smtp.EnableSsl = true;
NetworkCredential credit = new NetworkCredential("onukwilip2006#gmail.com", "onukwilip2006+_");
smtp.UseDefaultCredentials = true;
smtp.Credentials = credit;
smtp.Port = 587;
smtp.Send(mm);
}
}
ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert(\"Mail sent successfully\");", true);
i used the above function in my button onclick, but when i send the smtp is telling me:
Service not available, closing transmission channel. The server response was: Service not available
I've set my settings in account.google.com to allow less secure apps or something like that but the smtp is still not working.
It was telling me the below text the night before.
Service not available, closing transmission channel. The server response was: Too many connections
But now its telling me the below code this night.
Service not available, closing transmission channel. The server response was: Service not available
I also tried using the below function, but its still not working:
using (MailMessage mm = new MailMessage("onukwilip#gmail.com", Email.Text.Trim()))
{
mm.Subject = "Dummy";
mm.Body = "Body";
mm.IsBodyHtml = false;
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
smtp.EnableSsl = true;
NetworkCredential credit = new NetworkCredential("onukwilip2006#gmail.com", "onukwilip2006+_");
smtp.UseDefaultCredentials = true;
smtp.Credentials = credit;
smtp.Port = 587;
smtp.Send(mm);
}
ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert(\"Mail sent successfully\");", true);
Ive changed the port to : 25, 465,587 but still gives me the same error, when i set to 465 it tells me
Failure to send mail
Ive checked google for some answers but none seems to accomplish or settle the problem. Please help me...
UPDATE: I just tried it again using smtp.gmail.com as the host and port 587. but its still telling me:
Service not available, closing transmission channel. The server response was: Server busy, too many connections
When a customer buys an item, the button should send an email to the website owner. Here is the code I currently have:
SmtpClient smtpClient = new SmtpClient("smtpout.europe.secureserver.net", 80);
smtpClient.Credentials = new System.Net.NetworkCredential("info#furkantellioglu.com ", "Password");
smtpClient.UseDefaultCredentials = true;
smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
smtpClient.EnableSsl = true;
MailMessage mail = new MailMessage();
mail.Body = "Bekleyen Siparişleriniz Bulunmakta Lütfen Kontrol Ediniz.";
mail.Subject = "Dermabon Web Satış";
mail.IsBodyHtml = true;
mail.From = new MailAddress("info#furkantellioglu.com", "Sipariş");
mail.To.Add(new MailAddress("info#furkantellioglu.com"));
mail.CC.Add(new MailAddress("f.tellioglu#gmail.com"));
smtpClient.Send(mail);
But when I run it I get this error:
An exception of type 'System.Net.Mail.SmtpException' occurred in System.dll but was not handled in user code
Additional information: Sunucu güvenli bağlantıları desteklemiyor.
Any ideas on what this means?
please try changing
smtpClient.EnableSsl = true;
to
SmtpServer.EnableSsl = false;
a similar thread has been discussed on this forum which might help you Link
the error message means the server does not support secure connections. Your are using enable ssl but sending to port 80 so there could be a conflict here.
seems like a port error, try using changing
EnableSsl=false; and or UseDefaultCredentials = true; or use port 25
I am trying to send mail through mail server ( available in fatcow).
Username: info#efernssolutions.com
SMTP Server: smtp.hostname.com
SMTP Port: 587
I used the follwing code to send mail ,
if (ModelState.IsValid)
{
MailMessage message = new MailMessage();
try
{
message.To.Add(new MailAddress("kishore.eferns#gmail.com"));
message.From = new MailAddress("info#efernssolutions.com");
message.Subject = "Test mail";
message.Body = "this is the mail sended through my c#.net program";
message.BodyEncoding = System.Text.Encoding.UTF8;
message.SubjectEncoding = System.Text.Encoding.UTF8;
SmtpClient client = new SmtpClient();
client.Port = 587;
client.Host = "smtp.hostname.com";
System.Net.NetworkCredential nc = new System.Net.NetworkCredential("info#efernssolutions.com", "password");// is u are using Gmail
client.EnableSsl = true;
client.UseDefaultCredentials = false;
client.Credentials = nc;
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(ValidateServerCertificate);
client.Send(message);
}
catch (Exception ex)
{
;
}
}
When i use gmail server the code works fine and i received mail.
But it is not working with my email server.
I get the error,
the remote certificate is invalid according to the validation procedure
Is there anything left to do to make it work?
Please help,
Thank you
As first check I will suggest to check if your SSL certificate is correctly installed on your server
It works fine for a particular email address, but rest of the emails dont works..following error shows up:
Server Error in '/RealTimeArsenicDataVisualizer' Application.
Mailbox name not allowed. The server response was: From address not verified - see http://help.yahoo.com/l/us/yahoo/mail/original/manage/sendfrom-07.html
my code:
System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient("smtp.mail.yahoo.co.in", 587);
client.UseDefaultCredentials = false;
client.Credentials = new System.Net.NetworkCredential(emailid, password);
client.Port = 587;
client.Host = "smtp.mail.yahoo.co.in";
client.EnableSsl = false;
object userstate = msg;
client.Send(msg);
Change your code to below:
client.Port = 465;
client.Host = " smtp.mail.yahoo.com";
client.EnableSsl = true;
How to send e-mail on ASP .Net using outlook address??
I've tried this code but no luck:
Dim mailMessage As System.Net.Mail.MailMessage = New System.Net.Mail.MailMessage()
mailMessage.From = New System.Net.Mail.MailAddress("fromAddress")
mailMessage.To.Add(New System.Net.Mail.MailAddress("toAddress"))
mailMessage.Priority = Net.Mail.MailPriority.High
mailMessage.Subject = "Subject"
mailMessage.Body = "test"
Dim smtpClient As System.Net.Mail.SmtpClient = New System.Net.Mail.SmtpClient("xxx.outlook.com", portNumber)
smtpClient.Send(mailMessage) //--> got error here
But while I'm execute the code, it got this error message:
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.1 Client was not authenticated
I've tried to add a line of code:
smtpClient.Credentials = New System.Net.NetworkCredential(username, password)
But still can't send the e-mail.
Anyone can help?
Try smtpClient.UseDefaultCredentials = false; before you set new Credentials
Try to set smtpClient.EnableSsl to true / false depending on your environment
I'm guessing you are using Exchange 2007 or later as backend?
Anyway, your mail server does not allow you to send mails anonymously. You'll either need to supply a username/password in your code or allow unauthenticated relaying from your webserver.
Talk to your IT guys what they prefer.
I did it using c#.This may help you.Please check.
MailMessage msg1 = new MailMessage();
msg1.From = strEFrom;
msg1.To = strETo;
msg1.Cc = strECC;
msg1.Subject = "Hi";
msg1.Priority = MailPriority.High;
msg1.BodyFormat = MailFormat.Html;
msg1.Body = strBody;
SmtpMail.SmtpServer = ConfigurationSettings.AppSettings["MailServer"].ToString();
SmtpMail.Send(msg1);
and in web.config file
<appSettings>
<add key="MailServer" value=""/>
</appSettings>
Try these settings check for .EnableSSL property to true/false and the smtp post number on which your mail server listen for outgoing mail.
When you do not set enable the SSL settings in outlook for gmail outlook configuration then it gives same error but the reason was found the SSL settings..
well try this may it will solve your problem..
msg.IsBodyHtml = true;
msg.Body = mailContent;
SmtpClient mailClient = new SmtpClient("smtp.mail.yahoo.com", 25);
NetworkCredential NetCrd = new NetworkCredential(frmyahoo, frmpwd);
mailClient.UseDefaultCredentials = false;
mailClient.Credentials = NetCrd;
mailClient.EnableSsl = false;
mailClient.DeliveryMethod = SmtpDeliveryMethod.Network;
mailClient.Send(msg);
if it does not solve your problem then check your mail server/ client for the problem.
public static bool SendMail(string mailAccount, string password, string to, string subject, string message)
{
try
{
NetworkCredential loginInfo = new NetworkCredential(mailAccount, password);
MailMessage msg = new MailMessage();
msg.From = new MailAddress(from);
msg.To.Add(new MailAddress(to));
msg.Subject = subject;
msg.Body = message;
msg.IsBodyHtml = false;
SmtpClient client = new SmtpClient("smtp.gmail.com");
client.EnableSsl = true;
client.UseDefaultCredentials = false;
client.Credentials = loginInfo;
client.Send(msg);
return true;
}
catch (Exception)
{
return false;
}
}
I use this code to send mail from my gmail account.
was having the same error, moved the client.UseDefaultCredentials = false; before setting client.Credentials and everything works.