Fatal error when trying to send email using SwiftMailer and Sendgrid - php

I'm getting this error when trying to send an email using swiftmailer and the sendgrid smtp
Fatal error: *Uncaught exception 'Swift_TransportException' with message 'Expected response code 250 but got code "", with message ""'*
Here's my code :
$hdr = new SmtpApiHeader();
// Set all of the above variables
$hdr->addTo($toList);
$hdr->addSubVal('-name-', $nameList);
$hdr->addSubVal('-time-', $timeList);
// Specify that this is an initial contact message
$hdr->setCategory("initial");
// The subject of your email
$subject = 'Example SendGrid Email';
// Where is this message coming from. For example, this message can be from
// support#yourcompany.com, info#yourcompany.com
$from = array('no-reply#mupiz.com' => 'Mupiz');
$to = array('antonin#noos.fr'=>'AN',"antonin#mupiz.com"=>"AN2s");
$text="Hello -name-
Thank you for your interest in our products. We have set up an appointment
to call you at -time- EST to discuss your needs in more detail.
Regards,
Fred, How are you?
";
$html = "
<html>
<head></head>
<body>
<p>Hello -name-,<br>
Thank you for your interest in our products. We have set up an appointment
to call you at -time- EST to discuss your needs in more detail.
Regards,
Fred, How are you?<br>
</p>
</body>
</html>
";
// Your SendGrid account credentials
$username = 'XXXX';
$password = 'XXXX';
// Create new swift connection and authenticate
$transport = Swift_SmtpTransport::newInstance('smtp.sendgrid.net', 25);
$transport ->setUsername($username);
$transport ->setPassword($password);
$swift = Swift_Mailer::newInstance($transport);
// Create a message (subject)
$message = new Swift_Message($subject);
// add SMTPAPI header to the message
// *****IMPORTANT NOTE*****
// SendGrid's asJSON function escapes characters. If you are using Swift Mailer's
// PHP Mailer functions, the getTextHeader function will also escape characters.
// This can cause the filter to be dropped.
$headers = $message->getHeaders();
$headers->addTextHeader('X-SMTPAPI', $hdr->asJSON());
// attach the body of the email
$message->setFrom($from);
$message->setBody($html, 'text/html');
$message->setTo($to);
$message->addPart($text, 'text/plain');
// send message
if ($recipients = $swift->send($message, $failures))
{
// This will let us know how many users received this message
// If we specify the names in the X-SMTPAPI header, then this will always be 1.
echo 'Message sent out to '.$recipients.' users';
}
// something went wrong =(
else
{
echo "Something went wrong - ";
print_r($failures);
}
An idea ?
Thanks

There could be a number of things causing this. The most likely one is that your server has connecting to external hosts turned off. Other possibilities are that you're using an old version of PHP that has an openSSL error or that you're being rate limited by something.
You should take a look at this question for details on the external host issue: send mails via sendgrid
On a separate note, you should use the SendGrid PHP library if you want to send emails using SendGrid. It addresses a whole bunch of subtle nuances with Swift and sending in general. Also, it gives you access to the HTTP API in case you can't use SMTP for whatever reason.
https://github.com/sendgrid/sendgrid-php
Full Disclosure: I work as a developer evangelist for SendGrid and work on the PHP library from time to time.

for sendgrid might be two resons:
you may have the authentification data wrong
your account might still be provisioned, so you must wait a bit for it to be fully activated
so
check all the autentification data from app/config/mail.php to match with the data from https://sendgrid.com/docs/Integrate/index.html
check also not the have a top message/notification on your sendgrid account like:
Your account is still being provisioned, you may not be able to send
emails.

You will also receive this error if your account is frozen for billing reasons (e.g. lapsed credit card expiry date).
Note: SendGrid doesn't drop the message(s), they hold them until your billing issue is resolved then process them even when this error is returned.

Related

Send email using PHPMailer without SMTP authentication

I don't use PHP that often but when I do and I need to write a function to send E-Mails, I just used the mail() function. I have used it on a shared hosting service and I always received the E-Mails from a... well... not an account? A bot? It didn't even have an E-Mail address.
And that's what I want to achieve at this very moment - send an E-Mail to me without really connecting to a SMTP server or going through authentication. How can be that done with PHPMailer? Is it even possible in my case? And if you somehow got my question, how are such E-Mails even called; the ones that... aren't sent by... well... an E-Mail account?
<?php
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
require 'PHPMailer-master\src\Exception.php';
require 'PHPMailer-master\src\PHPMailer.php';
require 'PHPMailer-master\src\SMTP.php';
$mail = new PHPMailer();
$mail->FromName = "A random name";
$mail->addAddress("myemail#gmail.com", "Recepient Name");
$mail->isHTML(true);
$mail->Subject = "Subject is here";
$mail->Body = "Hello, <br>test body ";
if(!$mail->Send()) {
echo "Mailer Error: " . $mail->ErrorInfo;
} else {
echo "Message has been sent";
}
?>
This did make me laugh a bit...
No, emails can't just magically spring into existence, but there isn't necessarily a direct correlation between email user accounts and addresses.
When you send from a shared hosting account by calling mail(), the mail server knows the account you're sending from, and sometimes doesn't require authentication as a result. This for example is how GoDaddy operates. Unfortunately this approach is very prone to abuse because there is often little preventing you from flat-out lying about who you are. This is why such services are usually a) terrible and b) extremely unreliable for actually delivering messages.
If you don't specify a "from" address, the server will usually make one up from information it does have – typically your user account name, or the name of the user running the script (e.g. www-data), and the hostname of the server you're on, often something like randomnumber.hostingprovider.example.com. Look at the headers of messages you've sent before, and you'll probably see something like that.
Sometimes this address can be the same for all users on a given shared server, so your delivery reputation can depend on what others are sending, which could well be spam, phishing, malware, etc.
This vagueness is terrible for deliverability, so if you host your contact form on such a system, expect messages from it to end up in a spam folder.
If you use SMTP to send via a "proper" account you gain a lot more control and reliability, but unfortunately some hosting providers (GoDaddy again) block outbound SMTP and force you to use their mail servers. This is a way of saying that if you want to send email that will be delivered, use a decent hosting provider.
Once you get control over your sending, you can choose exactly what addresses messages are sent from, subject to authentication constraints including things like SPF, DKIM, and DMARC, but that's another story.
To my knowledge it is possible and have it work correctly each time. In the last year I found that the e-mails I sent using the mail() function would immediately go into my spam box (as well as the junk box of others) causing great confusion. I upgraded to PHPMailer to solve this and I have never set it up to use SMTP and works just fine.
The code I have is:
$mail = new PHPMailer(true);
$html = $email->get(); // This gets a standard HTML Template to use as the base of the e-mail.
$title = 'Title for Inside the HTML';
$subject = 'The E-mail Subject';
$html = str_replace('[title]',$title,$html); //Use this to replace the [title] element in my HTML Template with $title.
$html = str_replace('[date]',date("F j, Y g:i A"),$html); // Again, replaces [date] in the HTML Template with the current date and time.
$body = 'Hello My Good Friend,<br>This is just a simple <strong>HTML Message</strong><br><br>Thank you.';
$html = str_replace('[body]',$body,$html); //Add my HTML Message to the HTML Template.
try {
//Recipients
$mail->setFrom('noreply#example.com', 'My Organization');
$mail->addAddress($row["email"], $row["fullname"]); // Add a recipient
//Content
$mail->isHTML(true); // Set email format to HTML
$mail->Subject = $subject;
$mail->Body = $html;
$mail->AltBody = strip_tags($html,'<br>');
$mail->send();
//Return Success Message
$rMsg .= '<div class="alert alert-success">
<strong>Success: </strong> We have e-mailed the warning.</div>';
} catch (Exception $e) {
$rMsg .= '<div class="alert alert-danger">
<strong>Error: </strong> There was an error e-mailing the warning.</div>';
}

How to know mail is send and read by user when sending mail using SMTP,PHPmailer

is anybody know any solution for below problem
in my project, i am send email to client using smtp and php mailer and gmail script. so when i am send mail gmail send mail to particular client. for that i am passing gmail login and user name which is valid. all mail are sending properly. but sometime it may happen that some client not receive mail and at that time i am not able to get or trace any error. so i there any way, when i am sending mail to client , and when client get it and read it at that time i got any kind of confirmation.
Please if anybody have any idea , help me out.
<?php
/**
* Simple example script using PHPMailer with exceptions enabled
* #package phpmailer
* #version $Id$
*/
require ('../class.phpmailer.php');
try {
$mail = new PHPMailer(true); //New instance, with exceptions enabled
$body = "Please return read receipt to me.";
$body = preg_replace('/\\\\/','', $body); //Strip backslashes
$mail->IsSMTP(); // tell the class to use SMTP
$mail->SMTPAuth = true; // enable SMTP authentication
$mail->Port = 25; // set the SMTP server port
$mail->Host = "SMTP SERVER IP/DOMAIN"; // SMTP server
$mail->Username = "EMAIL USER ACCOUNT"; // SMTP server username
$mail->Password = "EMAIL USER PASSWORD"; // SMTP server password
$mail->IsSendmail(); // tell the class to use Sendmail
$mail->AddReplyTo("someone#something.com","SOMEONE");
$mail->From = "someone#something.com";
$mail->FromName = "SOMEONE";
$to = "other#something.com";
$mail->AddAddress($to);
$mail->Subject = "First PHPMailer Message[Test Read Receipt]";
$mail->ConfirmReadingTo = "someone#something.com"; //this is the command to request for read receipt. The read receipt email will send to the email address.
$mail->AltBody = "Please return read receipt to me."; // optional, comment out and test
$mail->WordWrap = 80; // set word wrap
$mail->MsgHTML($body);
$mail->IsHTML(true); // send as HTML
$mail->Send();
echo 'Message has been sent.';
} catch (phpmailerException $e) {
echo $e->errorMessage();
}
?>
Some modification need to be done in above script.
Configure SMTP mail server.
Set the correct FROM & FROM Name (someone#something.com, SOMEONE)
Set the correct TO address
from
also
Delivery reports and read receipts in PHP mail
You can always add reply to mail address which will take care if there is any error so you will get email back, and for if it's read, include a picture (blank picture of 1 pixel will do) and add code in that picture like and you can see how many hits that image did recieve or recieved any at all.
You can check that things in two different ways like, by using the header "Disposition-Notification-To" to your mail function, it will not going to work in all case because most people choose not to send read receipts. If you could, from your server, influence whether or not this happened, a spammer could easily identify active and inactive email addresses quite easily.
You can set header like
$email_header .= "Disposition-Notification-To: $from";
$email_header .= "X-Confirm-Reading-To: $from";
now the another method to check is by placing an image and you can add a script to onload of that image, that script will send notification to your system that xxx user have read the mail so, in that way you can track delivery status of the mail.
In fact, I can't think of any way to confirm it's been delivered without also checking it gets read, either by including a image that is requested from your server and logged as having been accessed, or a link that the user must visit to see the full content of the message.
Neither are guaranteed (not all email clients will display images or use HTML) and not all 'delivered' messages will be read.
Though for more info https://en.wikipedia.org/wiki/Email_tracking

Validating if email address exists

I'm a newbie in PHP. My goal is to send an email to the user registered in my system.
Here is my code:
$msg= " Hi $gen./$lName, copy and paste this code in order to activate
your account copy and paste this code:$num" ;
$email = "$emailadd";
$name= "GoodFaith Network Marketing Inc.";
$subject = "Account Activation";
$message = wordwrap($msg,70) ;
$sender = "cjoveric#myalphaedge.com";
$mail_header="From: ".$name."<". $sender. ">\r\n";
$sendmail=mail($email, $subject,$message, $mail_header );
I was able to send an email, but my problem is I want to know if the user's email address exists in Yahoo, GMail or other mail services.
Is there any way I could filter out invalid emails?
Use SMTP mail the best and easy to use SMTP.
$mail->IsHTML(true);
$mail->From="admin#example.com";
$mail->FromName="Example.com";
$mail->Sender=$from; // indicates ReturnPath header
$mail->AddReplyTo($from, $from_name); // indicates ReplyTo headers
$mail->AddCC('cc#phpgang.com.com', 'CC: to phpgang.com');
$mail->Subject = $subject;
$mail->Body = $body;
$mail->AddAddress($to);
if(!$mail->Send())
{
$error = 'Mail error: '.$mail->ErrorInfo;
return true;
}
else
{
$error = 'Message sent!';
return false;
}
Not really. About the best you can do is send an email and see if the user responds to it.
Doing a regex check on email address can be frustrating for some users, depending on regex. So, I recommend to skip your regex test and just send the verification email with a confirmation link -- anything else will leave your application brittle and subject to breakage as soon as someone comes up with a new DNS or SMTP extension. It's best to get that dealt with when their paying attention.
For example:
-a confirmation code that needs to be filled in your website
-a link, going to your website, that needs to be visited
And still it is uncertain whether the email is existing afterwards, as it is easy to simply create a temporary email to pass the validation and delete it afterwards.
Instead of validating email addresses you can use the Google API to let your users sign in using their account. It is also possible to use OpenID on a similar way. Though, even this is not 100% perfect. But heay, nothing is 100%. We all try to make is work as we want as much as possible. That's it.
PS: ICANN is expected to approve UNICODE domain names Real Soon Now. That will play merry hell with Regex patterns for email addresses.

Sending an email in php - swiftmailer

I've been searching for days if not weeks on how to automatically send a simple e-mail in php after a user completes my form. I've tried Pear, PHP mail, Swiftmailer, changed my php.ini, tried different servers and I'm going mad from none of it working. I have not successfully sent one e-mail yet. I've searched endlessly but I still have no idea what to do and why nothing is working.
At the moment I'm using Swiftmailer (second time round). I set up a test page with code:
<?php
require_once 'swift/lib/swift_required.php';
// CREATE TRANSPORT CONFIG
$transport = Swift_MailTransport::newInstance();
// CREATE MSG
$message = Swift_Message::newInstance();
// SET PRIORITY TO HIGH
$message->setPriority(2);
// SUBJECT
$message->setSubject('Subject');
// FROM
$message->setFrom(array('example#btopenworld.com'));
// TO
$message->setTo(array('example#googlemail.com'));
// EMAIL BODY
$message->setBody('Test');
// SEND
$mailer = Swift_Mailer::newInstance($transport);
$mailer->send($message);
if (!$mailer->send($message, $failures)) {
echo "Failures:";
print_r($failures);
}
?>
Looking at a similar post someone suggested the last part of the code to see errors and my error is:
Failures:Array ( [0] => example#googlemail.com )
No matter what e-mail I change it to (all using e-mails I have, so real e-mails) it doesn't work. If anyone has any help or suggestions it would be hugely appreciated.
example#btopenworld.com
Unless you are using a btopenworld server to send the E-Mail from, this is not going to work. The E-Mails from address needs to be associated with the server you are sending the message from. You can put the BT address into the reply-to header.
Also, SwiftMailer should have a "debug" switch telling you exactly what goes wrong, but I can't find it in the docs right now. Here is a logger plugin for Swiftmailer that should help if all else fails.

Swift Mailer can address be banned for mass mailing?

I need to send over 2000 mails and I am using Swift Mailer library for it.
We have own server and it has both SMTP and sendmail transports. I am using SMTP:
$transport = Swift_SmtpTransport::newInstance('localhost', 25);
All mails are send fine to few people, but I'm afraid that we will be banned when we send mass mail.
I don't really know what means "banned" and how it looks like, but I'm afraid about the aftermath.
So, is it true, that such "ban" exists and how to implement mass mailing with Swift Mailer in a right way?
P.S.: My code looks like:
// Create the Transport
$transport = Swift_SmtpTransport::newInstance('localhost', 25);
// Create the Mailer using your created Transport
$mailer = Swift_Mailer::newInstance($transport);
// Create a message
$message = Swift_Message::newInstance($message_theme)
->setFrom(array($sender => $name))
->setTo($emails)
->setBody($message_text,"text/html")
;
try {
// Send the message
$result = $mailer->send($message);
}
catch(Exception $e) {
echo "Error: ".$e->getMessage();
}
As I'm hoping you will not use this for spam!!!
Here are some things to do:
try to same different Emails (change name of the recipient in body)
send emails once every 3-4 seconds and not 100 emails/second - it should send 2000 emails in about 2-3 hours.
Blacklisting/graylisting does indeed exist and there are some best practices you can implement to try to avoid these issues. For 2,000 emails, as long as your headers are legitimate, there is nothing fishy going on in your body text, and your recipients are on different domains, you should not run into this issue. However, as khomyakoshka mentions, the above code is incorrect and you should use a loop to send each email. This avoids exposing your entire mail list to each user.
Some additional best practices:
1) Swiftmailer offers plugins (http://swiftmailer.org/docs/plugins.html) that will help you send bulk email. Of particular note are the Throttler and AntiFlood plugins.
2) If you intend on modifying the contents of the mail to tailor to the recipient, consider using the Decorator plugin (also mentioned on the plugins page) for this task.
Hope these tips help.

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