I am trying to send an email using a simple button in asp.net. But I am getting following error-"The transport failed to connect to the server".
SmtpMail.SmtpServer = "localhost";
I've used localhost because,I don't know smtp server name of my computer..
how can i fix it? how can I know the SMTP server name?? My os is win xp
hope someone can help me...
To test email locally set up a drop folder called 'maildrop' on your C:\ drive and add the following to your Web.Config file:
<system.net>
<mailSettings>
<smtp deliveryMethod='SpecifiedPickupDirectory'>
<specifiedPickupDirectory pickupDirectoryLocation="c:\maildrop" />
</smtp>
</mailSettings>
</system.net>
ASP.NET: Using pickup directory for outgoing e-mails
UPDATE:
You should be using the newer email library...
using System.Net.Mail;
MailMessage msg = new MailMessage();
msg.To = "sudheej.j800#outlook.com";
msg.From = "sudheej.j800#gmail.com";
msg.Subject = "hi";
msg.Body = "yes";
SmtpClient smtpClient = new SmtpClient("localhost");
smtpClient.Send(msg);
Standard SMTP runs on port 25. If you don't have anything listening on port 25 on your machine, then you likely don't have an SMTP server running. Try:
telnet localhost 25
and see if that connects to something. I ssupect not (i.e. you don't have an SMTP server on localhost)
You need a SMTP server on your machine before do that.
Related
I have a code for sending mail using SMTP settings in asp.net. That code is working well on live but when i am testing the same on localhost. It shows the error:
Mailbox unavailable. The server response was: 5.7.1 Unable to relay for abc.xyz.com
I know this is some configuration related error, but i don't know exactly what i need to change to test the same on localhost. I have defined these attributes for SMTP:
smtp.Host = "abc.server.net";
smtp.Port = 123;
smtp.EnableSsl = false;
fromEmail="any email";
password="password"
Any help would be appreciated.
You have to configure relay restrictions in the IIS admin. see this article
try this
Open IIS Manager using Control Panel --> Administrative Tools.
Open SMTP Virtual Server properties.
On General tab, Set IP address of the Web server instead of "All Unassigned".
In Access tab, click on Relay button, this will open Relay Restrictions dialog.
In relay computers list, add the loopback IP address i.e 127.0.0.1 and IP address of the Web server, so that they can pass/relay emails through the SMTP server.
source : SO
i am using for send mail my smtp server is "xxx.xx.x", its working fine. But now i am changing the mail server for emails. i am using new mail smtp server ip address is "xxxxxxx.xxx.xxx", in this case get the error like "The server rejected one or more recipient addresses. The server response was: 554 5.7.1 : Client host "
i am using the bellow code
Dim eMail As MailMessage = New MailMessage
eMail.To = "xxxxxxx"
eMail.BodyFormat = MailFormat.Html
eMail.From = "xxxxxxxx"
eMail.Subject = "intermedia mail test using 127.0.0.1"
eMail.Body = sMsg
SmtpMail.SmtpServer = "xxxxxxx 'AppSettings("MailServer")
SmtpMail.Send(eMail)
Thanks in advance
You are getting this error because the mail server is configured to only send mail from certain domains or the client is not in its list of accepted senders.
You need to get in touch with the mail server administrator and ask them to allow the IP address of the machine that the application resides on or send the mail using an address in the correct domain.
http://www.ietf.org/rfc/rfc1893.txt
On my website i send e-mails. My situation is these mails are being sent when using my local development machine, and not on my production environment.
The web.config is the same on both sites:
<system.net>
<mailSettings>
<smtp from="info#domain.dk" deliveryMethod="Network">
<network host="mail.domain.dk" userName="info#domain.dk" password="mypassword" port="26"></network>
</smtp>
</mailSettings>
</system.net>
In my code, I send it like this:
SmtpClient client = new SmtpClient();
client.Send(mail);
I have no idea how to debug this problem, as it is the exactly same code on both production and development.
Any ideas on how to start debugging / solving the problem?
EDIT:
I managed to get a log from the server. Error is:
2012-11-01 20:41:58,383 [11] FATAL GKBusiness.Managers.MailManager [(null)] - Email exception: Mailbox unavailable. The server response was: Access denied - Invalid HELO name (See RFC2821 4.1.1.1)
Hmm
My situation is these mails are being sent when using my local development machine, and not on my production environment.
<network host=..... port="26">
If you are in a shared hosting environment, it's likely that ASP.Net is set to Medium Trust - and if so, SMTP is restricted to port 25.
It will work in your local environment because ASP.Net is set to Full Trust (in local/VS dev).
This is the error I get
No connection could be made because the target machine actively
refused it 127.0.0.1:25
here is my web.config snippet:
<mailSettings>
<smtp from="local#local.com">
<network host="localhost" port="25"/>
</smtp>
</mailSettings>
I (think) I have setup my smtp server through IIS. I went into the IIS Manager tool set
e-mail address to:local#local.com
SMTP Server: localhost
Port: 25
Authentication Settings : Not required
By doing all of this, am I theoretically setting up my web application to send email from the localhost? not sure why I am getting that error?
Thanks!
I have code that relies heavily on email notification. In my web.config I am able to specify an smtp server like this:
<system.net>
<mailSettings>
<smtp from="myaccount#mydomain.com">
<network host="mail.mydomain.com" port="25" userName="myusername" password="mypassword" defaultCredentials="true"/>
</smtp>
</mailSettings>
</system.net>
This is acceptable, but I would like to implement 2 or 3 exchange servers here in the event that (for what ever reason) smtp server 1 goes offline, I need a backup option.
Is there any quick / built in way to achieve this fail safe in .net, or is there a trusted manual way to implement this. My existing send mesage code looks like this (but watered down):
MailMessage message = new MailMessage();
SmtpClient client = new SmtpClient();
client.Send(message);
Notice its pulling the host directly from the configuration.
Any ideas what is best practice here for this scenario?
<network host="localhost" port=...
and configure the local SMTP transport to relay to your rendundant servers.
that way you won't loose emails because of transient network problems (the local MTA will just hold on to them).
There's an SmtpClient constructor that takes a host name and port. You could have a list of servers, try send the mail and if the server is unavailable it will throw an exception which you catch and retry with other server from the list.