Chilkat Examples

ChilkatHOME.NET Core C#Android™AutoItCC#C++Chilkat2-PythonCkPythonClassic ASPDataFlexDelphi ActiveXDelphi DLLGoJavaLianjaMono C#Node.jsObjective-CPHP ActiveXPHP ExtensionPerlPowerBuilderPowerShellPureBasicRubySQL ServerSwift 2Swift 3,4,5...TclUnicode CUnicode C++VB.NETVBScriptVisual Basic 6.0Visual FoxProXojo Plugin

Perl Examples

Web API Categories

ASN.1
AWS KMS
AWS Misc
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Key Vault
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Code Signing
Compression
DKIM / DomainKey
DNS
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
EBICS
ECC
Ed25519
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
GMail SMTP/IMAP/POP
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text
HTTP

HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
MS Storage Providers
Microsoft Graph
Misc
NTLM
OAuth1
OAuth2
OIDC
Office365
OneDrive
OpenSSL
Outlook
Outlook Calendar
Outlook Contact
PDF Signatures
PEM
PFX/P12
PKCS11
POP3
PRNG
REST
REST Misc
RSA
SCP
SCard
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
ScMinidriver
SharePoint
SharePoint Online
Signing in the Cloud
Socket/SSL/TLS
Spider
Stream
Tar Archive
ULID/UUID
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(Perl) Send Email without Mail Server

How to send an email without a mail server (so-to-speak).

Chilkat Perl Downloads

Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# Is it really possible to send email without connecting to
# a mail server?  Not really.

# When people ask 'Do you support sending email without 
# a mail server'?  what they're really asking is: 'I don't
# have an SMTP server, and I want to send email.  I see
# other components available where it's not necessary
# to specify an SMTP server.  Does your component have that
# ability?'  In short, the answer is Yes.  But you need
# to understand some things before you jump in...

# Here's what happens inside those other components
# that claim to not need a mail server:  The component does
# a DNS MX lookup using the intended recipient's email address
# to find the mail server (i.e. SMTP server) for that
# domain.  It then connects to that server and delivers the
# email.  You're still connecting to an SMTP server -- just
# not YOUR server.

# Chilkat provides an MxLookup method where you can lookup
# the SMTP hostname that services any given email address. 
# You would then assign the SmtpHost property to this value.
# Chilkat can then connect directly to the recipient's mail 
# server and deliver the email.

# There are a few gotcha's though...

# First, if you're writing an application that is widely 
# distributed, your app might be running within a network
# that blocks outgoing connections to the SMTP port.
# Earthlink, for example, is one major ISP that does this.
# When you are connected to the Internet via Earthlink,
# your apps can *only* connect to Earthlink's SMTP server
# and will not be able to reach any remote servers.  To send
# email, you must use Earthlink's SMTP as a relay.  This is
# common with ISPs.  So... if your application is coded
# as in this example, it will not work within those networks.
# 
# Second, some SMTP servers will reject unauthenticated
# sessions attempting to send email from dynamic IP addresses.
# You may see this error in your LastErrorText:
# 553-Your attempt to send email to us has been blocked
# 553-because your email server is not currently on that domain's Accepted
# 553-Senders list. To request addition to their Accepted Senders list,
# 553-please navigate with a Web browser to the following URL:
# 553-http://reportrbl.gate2service.com/Whitelist/?IPAddress=67.173.123.150
# 553 See http://www.dnsbl.us.sorbs.net/ (dul)

# In a nutshell, just because you were able to do the MxLookup
# and connect to the recipient's mail server, doesn't mean
# you'll be able to send email -- it depends on the IP address
# from which you're connecting.

# Finally, the DNS lookup is potentially time consuming.
# In addition, you cannot use somebody else's email server
# as a relay, so if you're connecting to smtp.xyz.com, you
# can only send email to email addresses at xyz.com.
# To send email to 3 recipients at different domains means
# making 3 separate connections to 3 separate SMTP servers
# to send the email one at a time.

# The mailman object is used for sending and receiving email.
$mailman = chilkat::CkMailMan->new();

$recipient = 'admin@chilkatsoft.com';

# Do a DNS MX lookup for the recipient's mail server.

$smtpHostname = $mailman->mxLookup($recipient);
if ($mailman->get_LastMethodSuccess() != 1) {
    print $mailman->lastErrorText() . "\r\n";
    exit;
}

print $smtpHostname . "\r\n";

# Set the SMTP server.
$mailman->put_SmtpHost($smtpHostname);

# Create a new email object
$email = chilkat::CkEmail->new();

$email->put_Subject("This is a test");
$email->put_Body("This is a test");
$email->put_From('My Name <myname@mydomain.com>');
$email->AddTo("",$recipient);

$success = $mailman->SendEmail($email);
if ($success != 1) {
    print $mailman->lastErrorText() . "\r\n";
}
else {
    print "Mail Sent!" . "\r\n";
}


 

© 2000-2024 Chilkat Software, Inc. All Rights Reserved.