I need to find a way to send e-mails from my WPF application. Of course I tried sending it using for example Gmail SMTP and it works like a charm but for some reason this solution is unacceptable. So is there a way to send email straight from my computer without using any logging credentials or additional/not open source software? I tried something like this:
SmtpClient m = new SmtpClient();
m.Host = "xxx.xxx.xxx.xxx"; // my IP address.
m.Port = 25;
m.Send("Tests#xxx.xxx.xxx.xxx", "tests#gmail.com", "Test", "This is a test email.....");
It doesn't work like that, I've put mu IPV4 addres from ipconfig but the error I got is:
No connection could be made because the target machine actively refused it.
Is this even possible to run this straightforward from my PC like that? I assume its not even my static IP but some kind of dynamically changed IP from my ISP hidden behind NAT. How to configure it in other way?
My app is expected to run for example overnight and then I would like to receive and email after process is finished. Not interested in receiveing any other emails or sending emails to multiple users.
Sending email via SMTP is not complicated is just very legislated.
Each mail provider gmail/office365 has a configuration which you must follow exactly. The configuration is not even to send the email its just to autorize yourself for the smtp account being used.
Doing a quick search online for gmail the conditions are currently::
https://support.google.com/mail/answer/7126229?visit_id=1-636683482170517029-2536242402&hl=es&rd=1
Good luck
Related
Despite spending an entire morning with GoDaddy chat, and reading almost everything I can find on sending emails via godaddy I am still no closer to solving my issue.
What Have I tried
Firstly, this is my code.
var smtpClient = new SmtpClient("smtpout.secureserver.net")
// var smtpClient = new SmtpClient("relay-hosting.secureserver.net", 25)
{
Port = 25,
UseDefaultCredentials = false,
EnableSsl = false,
Credentials = new NetworkCredential("user#User.com", "Password#"),
// DeliveryMethod = SmtpDeliveryMethod.Network,
};
and I think I should mention that this works when I attempt to use google's free smpt server, the mail is sent. However using my godaddy credentials, I get the following error,
Message = "Service not available, closing transmission channel. The server response was: Cannot connect to SMTP server 72.167.234.197 (72.167.234.197:25), connect error 10060" other times it says
InnerException = {"Unable to read data from the transport connection: An established connection was aborted by the software in your host machine."}
I have also tried other suggested ports like 587 , 80, 3552. Nothing has changed, I have also tried the suggestion at this link https://www.godaddy.com/help/send-email-using-systemnetmail-19291 . Which did not work (no suprise to me, cause where am i putting the account password) . Would appreciate it if anyone has solved getting their C# application to work with Godaddy. Like I said it works with Google so I dont believe my code is an issue in anyway.
regards
Your code looks good, however, one way to test if you are using the correct smtp settings is to send the email with a program like Microsoft Outlook or Thunderbird. Also, if you are using a dedicated server or a VPS, you need to use
dedrelay.secureserver.net
See: https://in.godaddy.com/help/what-is-my-servers-email-relay-server-16601
Also, check out this see: https://in.godaddy.com/community/VPS-Dedicated-Servers/Unable-to-send-email-from-C-net-application-from-website/m-p/102913#M1256
which mentions: "If you are using a Plesk shared hosting plan, use relay-hosting.secureserver.net and port 25. Do not specify a username or password. Other relay/smtp servers will not work from our shared hosting."
I'm developing a console app which will be executed from a windows service that needs to send emails using the domain account associated to the domain account running the windows service.
In my development machine I'm logged with a domain account that belongs to the same domain that will run the windows service but I'm not able to get it working properly.
For this development I'm using .NET 4.6.1 and the nuget package FluentEmail.Smtp
My code looks like this:
Email.DefaultSender = new SmtpSender(new SmtpClient
{
UseDefaultCredentials = true,
EnableSsl = true,
Host = "smtp.office365.com",
TargetName = "STARTTLS/smtp.office365.com",
Port = 587,
DeliveryMethod = SmtpDeliveryMethod.Network
});
await Email.From("myname#mycompanydomain.com", "Some tittle")
.To(emailListObject)
.Subject("Some subject")
.Body("Some body", true)
.SendAsync();
With this code I'm getting the following exception:
Unable to connect to the remote server
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 52.96.9.178:587
at System.Net.Mail.SmtpConnection.ConnectAndHandshakeAsyncResult.End(IAsyncResult result)
at System.Net.Mail.SmtpTransport.EndGetConnection(IAsyncResult result)
at System.Net.Mail.SmtpClient.ConnectCallback(IAsyncResult result)
Note: From my machine I'm able to ping the IP mentioned in the exception
I'll appreciate your assistance
For starters you might want to take a look at the official document - direct send. You will note that there are quite a few issues (such as TLS security) alongside proper configuration of your Exchange server.
Without more information in your question it is rather limited as to what can be answered, however as an alternate solution, maybe take a look at direct send. (which is much less effort).
Settings for direct send
Enter the following settings on the device or in the application directly.
Server/smart host. Use your MX endpoint, for example, contoso-com.mail.protection.outlook.com
Port. Use port 25
TLS/StartTLS. Enable this.
Email address. Use any email address for one of your Office 365 accepted domains. This email address does not need to have a mailbox.
Microsoft recommends adding an SPF record to avoid having messages flagged as spam. If you are sending from a static IP address, add it to your SPF record in your domain registrar's DNS settings as follows:
DNS entry Value
SPF v=spf1 ip4:<Static IP Address> include:spf.protection.outlook.com ~all
I build an application to retreive email from gmail account. I can very well view email on my development PC, however when I run the setup on production PC(client PC), it gives error
POP3 Server Authentication-The server did not accept user credentials.
I tried replacing port from 995 to 587 and 465, but same issue.
I also added AuthenticationMethod.UsernameAndPassword
My code for connection:
if (pop3Client.Connected)
pop3Client.Disconnect();
pop3Client.Connect(popServerTextBox.Text, int.Parse(portTextBox.Text), useSslCheckBox.Checked);
//pop3Client.Authenticate(loginTextBox.Text, passwordTextBox.Text,AuthenticationMethod.UsernameAndPassword);
pop3Client.Authenticate(loginTextBox.Text, passwordTextBox.Text);
What am I missing here.
Thanks
I am able to solve the issue. It was gmail who was blocking connection, I just needed to add production PC on gmail and it worked.
Thanks
I am trying to send a test email from my IIS it has SMTP installed, but I am confused how to use IP address to send email.
Here is my code
SmtpClient m = new SmtpClient();
m.Host = "xxx.xxx.xxx.xxx"; // my IP address.
m.Port = 25;
m.Send("xxx.xxx.xxx.xxx", "mymailID#gmail.com", "Test", "This is a test email.....");
This code giving error
The specified string is not in the form required for an e-mail
address.
UPDATE
I am new to email sending concept.
According to MSDN, the first argument to Send() should be the From address. In emails, this is another email address. You're giving it an IP, not an email.
An IP address can be used as the hostname portion of an email address. For example:
webmaster#192.168.0.1
(Though I doubt modern mail systems will like that, and many may flag it as spam or in some other way treat it as unwanted mail.) But it can not be used as the entire address.
You need the from address:
m.Send("FROM EMAIL ADDRESS HERE", "mymailID#gmail.com", "Test", "This is a test email.....");
Documentation Send(string, string, string, string)
Chances are you've received email from robot#domain.com with instructions
Do Not Reply to this Email
It seems like this would be your best bet, depending on if your mail server wants an authenticate address or not. For example, www.domainY.com, will only send domainY.com email address. There can be a lot of rules or no rules, but that can be for another time.
The from address is whatever you want it to. I usually pick clever or descriptive names that describe the email that is being sent. Emails sent back to this address will end up in never land, however.
If you are using smtp you should have an smtp server such as server.domain.com or something of that nature.
I have an application which uses SmtpClient to send an email. I am trying to send an email to multiple recipients. I have two recipients in my to list e.g "aman#gmail.com,abc#xyz.com". and I am trying to send the email to this list but my application is throwing the exception as below:
Client does not have permission to submit mail to this server. The server response was: 4.7.1 (abc#xyz.com): Relay access denied.
because of this aman#gmail.com is also not able to receive the email.
I need to implement the functionality that even there is an invalid address like abc#xyz.com in the ToList, an email should be sent successfully to aman#gmail.com.
Can anybody please help me in this?
Does this error message come from your own email server, or from that of xyz.com? I'm guessing it's your own server, and that you either need to aunthenticate before sending, or use your own email address for sending (but the latter is kind of a long shot -- "we do not relay" means a server which is neither the sender's or the recipient's refuses to act as a middleman). It is also possible that the mail exchanger for xyz.com is misconfigured (either the MX record in DNS points to the wrong server, or the admin failed to configure it to accept this responsibility - technically basically the same thing) or that your client somehow ends up connecting to the wrong place.
(Not a proper answer but this got too long to fit in a comment.)