smtp_setup()

Configuring TCP ID, UDP ID, and DNS server to send emails by using SMTP

Description

void smtp_setup(int $udp_id, int $tcp_id [, string $dns_server = ""[, bool $ip6 = false]])

Parameters

$udp_id: UDP ID for DNS query
$tcp_id: TCP ID for sending email
$dns_server: IP address of the DNS server, if it is omitted system's DNS IP address will be used
$ipv6: enable or disable IPv6

Return Value

none

Example

<?php
include "/lib/sn_dns.php";     // including DNS library
include "/lib/sn_smtp.php";    // including SMTP library
// UDP 0 for DNS, TCP 1 for sending email, DSN server IP: 192.168.0.1
smtp_setup(0, 1, "192.168.0.1");

//  UDP 2 for DNS, TCP 3 for sending email, DSN server IP: system DNS server IP
smtp_setup(2, 3);

// enable IPv6
smtp_setup(0, 1, "", true);
?>

See also

smtp_hostname() >