Windows server 2008  Mysql  2.2.9.2

Cannot send mail via localhost, gmail etc. The log file is as follows....

DotNetOpenMail.MailException: Could not connect to ::1:25 ---> System.Net.Sockets.SocketException: An address incompatible with the requested protocol was used ::1:25
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Connect(EndPoint remoteEP)
at System.Net.Sockets.TcpClient.Connect(IPEndPoint remoteEP)
at DotNetOpenMail.SmtpProxy.Open()
--- End of inner exception stack trace ---
at DotNetOpenMail.SmtpProxy.Open()
at DotNetOpenMail.SmtpServer.Send(ISendableMessage emailMessage, EmailAddressCollection rcpttocollection, EmailAddress mailfrom)
at mojoPortal.Net.Email.SendEmail(SmtpSettings smtpSettings, String from, String to, String cc, String bcc, String subject, String messageBody, Boolean html, String priority)
 

I tried enabled dotnetopenmail and it sent one email and that was it. Not to be repeated.

I am also running multiple sites with enablesitesettingsmtpsettings set to "true"

Man I'm baffled

This error is related to IPv6  being preferred over IPv4 -- "::1" is your localhost address in IPv6 terms. Disabling IPv6 through the registry and restarting the computer solved this for me, although I'm not sure this is a good solution.

What are the consequences of disabling the DotNetOpenMail?

Hi Joe,

I have the following environment and experiencing problem with email config.

=> mojoPortal Version  2.3.5.3 MSSQL, running on IIS7, .Net 4.0 (upgraded) at godaddy

i put the email settings as follows:

<add key="DisableDotNetOpenMail" value="true"/> -tried with false as well
    <add key="SMTPServer" value="smtp.gmail.com"/>
    <add key="SMTPRequiresAuthentication" value="true"/>
    <add key="SMTPUseSsl" value="true"/>
    <add key="SMTPPort" value="587"/>
    <add key="SMTPUser" value="myacct@gmail.com"/>
    <add key="SMTPPassword" value="mypass"/>
    <add key="SMTPTimeoutInMilliseconds" value="30000"/>

<system.net>
    <mailSettings>
      <smtp from="myacct@gmail.com">
        <network host="smtp.gmail.com" port="587" password="mypassword" userName="myacct@gmail.com"/>
      </smtp>
    </mailSettings>
  </system.net>

I set the admin account, in the site configuration with myacct@gmail.com.

regardless of the DisableDotNetOpenMail setting, i observe only the system.net mail component running, and not dotnetopenmail, is this depreciated in the .net4 version of mojoportal?

I tried different smtp servers, our exchange server, host provider's smtp, yahoo and gmail. in all cases, i am getting the following error:

2010-10-05 04:15:45,184 ERROR mojoPortal.Net.Email - error sending email to validtestemail]@yahoo.com from myacct@gmail.com, will retry
2010-10-05 04:16:51,346 ERROR mojoPortal.Net.Email - all retries failed sending email to validtestemail@yahoo.com from myacct@gmail.com, message was: Thank You for Registering with !

Your Registration will be confirmed by clicking the link below to unlock your account.
This is to prevent other people from Registering with your email address.

http://www.acbfpact.org/ConfirmRegistration.aspx?ticket=de414f9a-2aae-40f1-9828-b6eb60d889c3
System.Net.Mail.SmtpException: Failure sending mail. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: 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 74.125.67.109:587
   at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
   at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception)
   --- End of inner exception stack trace ---
   at System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6, Int32 timeout)
   at System.Net.PooledStream.Activate(Object owningObject, Boolean async, Int32 timeout, GeneralAsyncDelegate asyncCallback)
   at System.Net.PooledStream.Activate(Object owningObject, GeneralAsyncDelegate asyncCallback)
   at System.Net.ConnectionPool.GetConnection(Object owningObject, GeneralAsyncDelegate asyncCallback, Int32 creationTimeout)
   at System.Net.Mail.SmtpConnection.GetConnection(ServicePoint servicePoint)
   at System.Net.Mail.SmtpTransport.GetConnection(ServicePoint servicePoint)
   at System.Net.Mail.SmtpClient.GetConnection()
   at System.Net.Mail.SmtpClient.Send(MailMessage message)
   --- End of inner exception stack trace ---
   at System.Net.Mail.SmtpClient.Send(MailMessage message)
   at mojoPortal.Net.Email.Send(SmtpSettings smtpSettings, String from, String replyTo, String to, String cc, String bcc, String subject, String messageBody, Boolean html, String priority, String[] attachmentPaths, String[] attachmentNames)

Thanks