Mcafee VirusScan Enterprise 8.7i With Antisparyware blocked Asp.Net SMTP(Not Local) server

what is the error you are getting and how are your setting the email?

CT

Error : Failure sending mail.

SendMail(MailFrom, MailTo, MailSubject, MailBody)
{
            try
                {
                
                if(MailFrom==null)
                    {
                    MailFrom="Some Email address of my website";
                    }
                MailMessage msg = new MailMessage(MailFrom, MailTo, MailSubject, MailBody);
                msg.IsBodyHtml = true;
 
                SmtpClient clnt = new SmtpClient();
                clnt.Credentials = new NetworkCredential("USERNAME", "PASSWORD");
                clnt.Send(msg);
                msg.Dispose();
                return 1;
                }
            catch
                {
                return -1;
                }
}

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Here a sample of how we do it.

CT

<?php 
 
    $fileloc="pdf/11000028.pdf";
    $filename="11000028.pdf"; 
    $filetype=="application/octet-stream";
 
if ($filetype>"") {
 
	$message= 'Test message';
 
    // MAIL SUBJECT 
 
    $subject = "Mail with doc file attachment"; 
 
    // TO MAIL ADDRESS 
 
    $to="to@mail.com"; 
 
    // MAIL HEADERS 
 
    $headers  = "MIME-Version: 1.0\n"; 
    $headers .= "Content-type: text/html; charset=iso-8859-1\n"; 
    $headers .= "From: Name <name@name.com>\n"; 
 
    // MAIL HEADERS with attachment 
 
    $fp = fopen("pdf/11000028.pdf", "rb"); 
    $file = fread($fp); 
    $file = chunk_split(base64_encode($file)); 
    $num = md5(time()); 
 
        //Normal headers 
 
       $headers  = "From: Name<test@test.com>\r\n"; 
       $headers  .= "MIME-Version: 1.0\r\n"; 
       $headers  .= "Content-Type: multipart/mixed; "; 
       $headers  .= "boundary=".$num."\r\n"; 
       $headers  .= "--$num\r\n"; 
 
        // This two steps to help avoid spam    
 
       $headers .= "Message-ID: <".$now." TheSystem@".$_SERVER['SERVER_NAME'].">\r\n"; 
       $headers .= "X-Mailer: PHP 5".phpversion()."\r\n";          
 
        // With message 
 
    $headers .= "Content-Type: text/html; charset=iso-8859-1\r\n"; 
    $headers .= "Content-Transfer-Encoding: 8bit\r\n"; 
    $headers .= "".$message."\n"; 
    $headers .= "--".$num."\n";  
 
    // Attachment headers 
    $headers  .= "Content-Type:".$filetype." "; 
    $headers  .= "name=\"".$filename."\"r\n"; 
    $headers  .= "Content-Transfer-Encoding: base64\r\n"; 
    $headers  .= "Content-Disposition: attachment; "; 
    $headers  .= "filename=\"".$fileloc."\"\r\n\n"; 
    $headers  .= "".$file."\r\n"; 
    $headers  .= "--".$num."--"; 
    
   // SEND MAIL 
    
   @mail($to, $subject, $message, $headers); 
   fclose($fp); 
   echo '<font style="font-family:Verdana, Arial; font-size:11px; color:#333333; font-weight:bold">Attachment has been sent Successfully.<br /></font>'; 
 
} 
 
else 
 
    { 
echo '<font style="font-family:Verdana, Arial; font-size:11px; color:#F3363F; font-weight:bold">Wrong file format. Mail was not sent.</font>'; 
 
        //echo "<script>window.location.href='somewhere.html';</script>"; 
 
    } 
?>

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Dear

I want solution in the Asp.Net

My Code is works fine but not form local when McAfee installed

When I send mail form my local IIS 5.1 SMTP which is not blocked.

There is no error returns

it displays that mail sent successfully

but mail is not received.

It seem you antivirus is blocking local email too. check it to see if there is a a setting that opens up local request.
I will do more research on this.

CT

Ah check this setting.

https://kc.mcafee.com/corporate/index?page=content&id=KB54134

Solution
To enable HTTP response inspection:

Launch the IntruShield Manager.
In the left hand pane, open Sensors.
Select the Sensor to configure, click Advanced, then click the HTTP Response Settings tab.
Choose a Sensor port to configure in the drop-down list.
For each Sensor port, select Inbound or Outbound  to choose the direction in which HTTP response packets will be inspected.
Select Apply to confirm the changes.

CT

Hi ComputerTechie

You tried very well but I didn't get any solution.

Thank you very much.

Have you tried to telnet to your SMTP server from the box in question?  Ie: telnet yoursmtpserverip:25  This would allow you to quickly test if it is a Access Control Rule still blocking you or if it something else.

Dear its done
but i need to stop three mcafee servuces
1)Access Protection
2)Buffer Overflow Protection
3)On-Delivery Email Scanner