Gmail Account SMTP -> ERROR: Failed to connect to server: Connection refused (111)

问题:

Im using phpmailer to send emails using google business apps. Everything was running fine but since last three days, I've started to get the following error

SMTP -> ERROR: Failed to connect to server: Connection refused (111) The following From address failed: example@example.com  

The strange thing is that, this doesn't happen all the time. For example, Out of 10 emails, I get the above error for 9 and 1 email sometimes is sent out to recipient.

Here is my code

<?php  function sendmail($mail_to,$mail_sub,$mail_mesg){  //mail("casper.kotwal@gmail.com", "LRD sendmail", "inside send mail");  require_once('classes/class.phpmailer.php'); $mail = new PHPMailer(); $mail->IsSMTP(); $mail->SMTPDebug  = 2; $mail->SMTPAuth   = true; $mail->SMTPSecure = "ssl"; $mail->Host       = "smtp.gmail.com"; $mail->Port       = 465; $mail->Username   = "example@example.com"; $mail->Password   = "example"; $mail->AddReplyTo('example@example.com', 'Example Documents'); $mail->AddAddress($mail_to); $mail->SetFrom('example@example.com', 'Example Documents'); $mail->Subject = $mail_sub; $mail->MsgHTML($mail_mesg); $mail->Send(); }  sendmail("casper.kotwal@gmail.com", "test", "test"); 

EDIT I've updated my phpmailer to 5.2 (latest) but still I get this same error. The worst thing is sometimes it works and sometimes it doesn't. I've checked both ports for tls and ssl, both are listening fine.

Here is what I've done so far

1. Updated PHPMailer to latest version
2. Tried both tls on 587 and ssl on 465
3. Verified that both ports are listening
4. tried to connect to smtp.gmail.com through telnet using both ports (ssl and tls)
5. Tested all three different email addresses of google apps (a@a.com, b@b.com, c@c.com). All sites are giving same error - SMTP ERROR: Failed to connect to server: Connection refused (111)
6. Tested my code on different VPS and it "looks" to run fine over there.

Here is the output of debug when email is sent

SERVER -> CLIENT: 220 mx.google.com ESMTP df1sm6922498wib.12 - gsmtp CLIENT -> SERVER: EHLO www.land-registry-documents.co.uk SERVER -> CLIENT: 250-mx.google.com at your service, [2001:41c8:51:609:fcff:ff:fe00:3b86]250-SIZE 35882577250-8BITMIME250-STARTTLS250-ENHANCEDSTATUSCODES250-PIPELINING250-CHUNKING250 SMTPUTF8 CLIENT -> SERVER: STARTTLS SERVER -> CLIENT: 220 2.0.0 Ready to start TLS CLIENT -> SERVER: EHLO www.land-registry-documents.co.uk SERVER -> CLIENT: 250-mx.google.com at your service, [2001:41c8:51:609:fcff:ff:fe00:3b86]250-SIZE 35882577250-8BITMIME250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN250-ENHANCEDSTATUSCODES250-PIPELINING250-CHUNKING250 SMTPUTF8 CLIENT -> SERVER: AUTH LOGIN SERVER -> CLIENT: 334 VXNlcm5hbWU6 CLIENT -> SERVER: c3lzdGVtQGxhbmQtcmVnaXN0cnktZG9jdW1lbnRzLmNvLnVr SERVER -> CLIENT: 334 UGFzc3dvcmQ6 CLIENT -> SERVER: bmV3Y2FzdGxlbGVlZHM= SERVER -> CLIENT: 235 2.7.0 Accepted CLIENT -> SERVER: MAIL FROM:<system@land-registry-documents.co.uk> SERVER -> CLIENT: 250 2.1.0 OK df1sm6922498wib.12 - gsmtp CLIENT -> SERVER: RCPT TO:<casper.kotwal@gmail.com> SERVER -> CLIENT: 250 2.1.5 OK df1sm6922498wib.12 - gsmtp CLIENT -> SERVER: DATA SERVER -> CLIENT: 354 Go ahead df1sm6922498wib.12 - gsmtp CLIENT -> SERVER: Date: Wed, 13 May 2015 08:56:37 +0000 CLIENT -> SERVER: To: Casper Kotwal <casper.kotwal@gmail.com> CLIENT -> SERVER: From: Land Registry Documents <system@land-registry-documents.co.uk> CLIENT -> SERVER: Reply-To: Land Registry Documents <system@land-registry-documents.co.uk> CLIENT -> SERVER: Subject: PHPMailer GMail SMTP test CLIENT -> SERVER: Message-ID: <59cec7626d25f2022430e0660778e492@www.land-registry-documents.co.uk> CLIENT -> SERVER: X-Priority: 3 CLIENT -> SERVER: X-Mailer: PHPMailer 5.2.10 (https://github.com/PHPMailer/PHPMailer/) CLIENT -> SERVER: MIME-Version: 1.0 CLIENT -> SERVER: Content-Type: multipart/alternative; CLIENT -> SERVER: boundary="b1_59cec7626d25f2022430e0660778e492" CLIENT -> SERVER: Content-Transfer-Encoding: 8bit CLIENT -> SERVER: CLIENT -> SERVER: This is a multi-part message in MIME format. CLIENT -> SERVER: CLIENT -> SERVER: --b1_59cec7626d25f2022430e0660778e492 CLIENT -> SERVER: Content-Type: text/plain; charset=us-ascii CLIENT -> SERVER: CLIENT -> SERVER: This is a plain-text message body CLIENT -> SERVER: CLIENT -> SERVER: CLIENT -> SERVER: --b1_59cec7626d25f2022430e0660778e492 CLIENT -> SERVER: Content-Type: text/html; charset=us-ascii CLIENT -> SERVER: CLIENT -> SERVER: test CLIENT -> SERVER: CLIENT -> SERVER: CLIENT -> SERVER: CLIENT -> SERVER: --b1_59cec7626d25f2022430e0660778e492-- CLIENT -> SERVER: CLIENT -> SERVER: . SERVER -> CLIENT: 250 2.0.0 OK 1431507399 df1sm6922498wib.12 - gsmtp CLIENT -> SERVER: QUIT SERVER -> CLIENT: 221 2.0.0 closing connection df1sm6922498wib.12 - gsmtp 

When it doesn't send

SMTP ERROR: Failed to connect to server: Connection refused (111) 

回答1:

There might be dns issues. Check your /etc/resolve.conf file set these,

nameserver 8.8.8.8

nameserver 8.8.4.4

回答2:

Google's smtp started to be very picky over time. I've used it to deliver notifications from web apps (definitely less than 100 per day), but ONE misspelled email address that bounces is enough to start seeing Connection refuses from their side.

Switch to some transaction mail provider (e.g. mandrill etc) for peace of mind. They usually have some free starters plan that is still way better than smtp of Google.

回答3:

It may not make a difference, but you're using an old version of PHPMailer (get the latest), and you should base your code on the gmail example provided, not the old one you've used.

I'd say this is a network problem - if you're being rejected by spam filters, google will tell you, give you 4.2.1 deferrals etc, not block you outright.

Take a look through the troubleshooting guide and see if you get any other clues about your connectivity. It could be something like your ISP blocking outbound SMTP.

One other observation: this is very unlikely to be a spam filtering issue as it involves sending mail from gmail, not to gmail.

回答4:

I am using GoDaddy hosting. I keep some fields blank and send mail it works. please see below code it is working for me.

<?php include("class.phpmailer.php"); function sendMail($address,$username,$body){             $mail = new PHPMailer();             $mail->IsSMTP(); // telling the class to use SMTP             //$mail->Host       = "smtp.gmail.com"; // SMTP server             $mail->SMTPDebug  = 1;                     // enables SMTP debug information (for testing)                                 // 1 = errors and messages                                                                            // 2 = messages only             // $mail->SMTPAuth   = true;                  // enable SMTP authentication             // $mail->SMTPSecure = "ssl";                 // sets the prefix to the servier             // $mail->Host       = "smtp.gmail.com";      // sets  as the SMTP server             // $mail->Port       = 465;                   // set the SMTP port for the server             // $mail->Username   = "xyz@gmail.com";  // username             // $mail->Password   = "test121232";            // password              $mail->SetFrom('contact@example.co.in', 'Contact');              $mail->Subject    = "Enquiry for tour and travels package";                $mail->MsgHTML($body);              $address = $address;             $mail->AddAddress($address, $username);             $mail->AddCC('contact@example.co.in');              if(!$mail->Send()) {             echo "Mailer Error: " . $mail->ErrorInfo;             } else {             echo "Message sent!";             } }  ?> 

just changed from email address, so you can send mail to this email id.

$mail->SetFrom('youremail@example.co.in', 'Contact'); 

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