github.com/itrepablik/gomail
Package gomail provides a simple interface to compose emails and to mail them efficiently. More info on Github: https://github.com/go-gomail/gomail A daemon that listens to a channel and sends all incoming messages. Efficiently send a customized newsletter to a list of recipients. Send an email using a local SMTP server. Send an email using an API or postfix.
Readme
We have downloaded and modified this gomail package originally from the author alexcesaro of #gomail in which the package seems no longer maintaining, that's why we take this very good package to maintain it for other gopher developers.
Gomail is a simple and efficient package to send emails. It is well tested and documented.
Gomail can only send emails using an SMTP server. But the API is flexible and it is easy to implement other methods for sending emails using a local Postfix, an API, etc.
It requires Go 1.2 or newer. With Go 1.5, no external dependencies are used.
Gomail supports:
go get -u github.com/itrepablik/gomail
If you get this error it means the certificate used by the SMTP server is not
considered valid by the client running Gomail. As a quick workaround you can
bypass the verification of the server's certificate chain and host name by using
SetTLSConfig:
package main
import (
"crypto/tls"
"github.com/itrepablik/gomail"
)
func main() {
d := gomail.NewDialer("smtp.example.com", 587, "user", "123456")
d.TLSConfig = &tls.Config{InsecureSkipVerify: true}
// Send emails using d.
}
Note, however, that this is insecure and should not be used in production.
We also have another package in which gomail and sendgrid are supported, kindly install sulat package.
go get -u github.com/itrepablik/sulat
This is an example usage of how to send an email using gomail package with #sulat package:
package main
import (
"fmt"
"github.com/itrepablik/itrlog"
"github.com/itrepablik/sulat"
)
// HTMLHeader is the HTML skeletal framework head section of the standard HTML structure that serves as an email content
const HTMLHeader = `<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html dir="ltr" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta name="viewport" content="width=device-width" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Email Notifications</title>
</head>
<body style="margin:0px; background: #f8f8f8; ">
<div width="100%" style="background: #f8f8f8; padding: 0px 0px; font-family:arial; line-height:28px; height:100%; width: 100%; color: #514d6a;">
<div style="max-width: 700px; padding:50px 0; margin: 0px auto; font-size: 14px">
<table border="0" cellpadding="0" cellspacing="0" style="width: 100%; margin-bottom: 20px">
<tbody>
<tr>
<td style="vertical-align: top; padding-bottom:30px;" align="center">
<a href="https://itrepablik.com" target="_blank">
<img src="https://itrepablik.com/static/assets/images/ITRepablik_top_logo.png" style="width:230px; height:auto;" alt="xtreme admin" style="border:none">
</a>
</td>
</tr>
</tbody>
</table>`
// HTMLFooter is the HTML skeletal framework footer section of the standard HTML structure that serves as an email content
const HTMLFooter = `</div></div></body></html>`
// bodyHTML is your custom email contents, this is just an example of a password reset auto email from your Go's project
var bodyHTML = `<div style="padding: 40px; background: #fff;">
<table border="0" cellpadding="0" cellspacing="0" style="width: 100%;">
<tbody>
<tr>
<td style="">
<h1 style="font-size:14px; font-family:arial; margin:0px; font-weight:bold;">Hi politz,</h1>
</td>
</tr>
<tr>
<td style="padding:10px 0 30px 0;">
<p>A request to reset your password has been made. If you did not make this request, simply ignore this email. If you did make this request, please reset your password:</p>
<center>
<a href="#" style="display: inline-block; padding: 11px 30px; margin: 20px 0px 30px; font-size: 15px; color: #fff; background: #4fc3f7; border-radius: 60px; text-decoration:none;">Reset Password</a>
</center>
<b>- Thanks (ITRepablik.com Team)</b>
</td>
</tr>
<tr>
<td style="padding-top:20px;">
If the button above does not work, try copying and pasting the URL into your browser.<br/>
<a href="#">https://itrepablik.com/activate/abcde12345</a><br/>
If you continue to have problems, please feel free to contact us at <a href="mailto:support@itrepablik.com">support@itrepablik.com</a>
</td>
</tr>
</tbody>
</table>
</div>`
// FullHTML use this when you preferred the full HTML template as your content
var FullHTML = `<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html dir="ltr" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta name="viewport" content="width=device-width" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Email Notifications</title>
</head>
<body style="margin:0px; background: #f8f8f8; ">
<div width="100%" style="background: #f8f8f8; padding: 0px 0px; font-family:arial; line-height:28px; height:100%; width: 100%; color: #514d6a;">
<div style="max-width: 700px; padding:50px 0; margin: 0px auto; font-size: 14px">
<table border="0" cellpadding="0" cellspacing="0" style="width: 100%; margin-bottom: 20px">
<tbody>
<tr>
<td style="vertical-align: top; padding-bottom:30px;" align="center">
<a href="https://itrepablik.com" target="_blank">
<img src="https://itrepablik.com/static/assets/images/ITRepablik_top_logo.png" style="width:230px; height:auto;" alt="xtreme admin" style="border:none">
</a>
</td>
</tr>
</tbody>
</table>
<div style="padding: 40px; background: #fff;">
<table border="0" cellpadding="0" cellspacing="0" style="width: 100%;">
<tbody>
<tr>
<td style="">
<h1 style="font-size:14px; font-family:arial; margin:0px; font-weight:bold;">Hi UserName,</h1>
</td>
</tr>
<tr>
<td style="padding:10px 0 30px 0;">
<p>A request to reset your password has been made. If you did not make this request, simply ignore this email. If you did make this request, please reset your password:</p>
<center>
<a href="#" style="display: inline-block; padding: 11px 30px; margin: 20px 0px 30px; font-size: 15px; color: #fff; background: #4fc3f7; border-radius: 60px; text-decoration:none;">Reset Password</a>
</center>
<b>- Thanks (ITRepablik.com Team)</b>
</td>
</tr>
<tr>
<td style="padding-top:20px;">
If the button above does not work, try copying and pasting the URL into your browser.<br/>
<a href="#">https://itrepablik.com/activate/hello-world</a><br/>
If you continue to have problems, please feel free to contact us at <a href="mailto:support@itrepablik.com">support@itrepablik.com</a>
</td>
</tr>
</tbody>
</table>
</div>
<div style="text-align: center; font-size: 12px; color: #b2b2b5; margin-top: 20px">
<p> Powered by ITRepablik.com
<br>
<a href="javascript: void(0);" style="color: #b2b2b5; text-decoration: underline;">Unsubscribe</a>
</p>
</div>
</div>
</div>
</body>
</html>`
// SMTPCon initialize this variable globally sulat.SMTPConfig{} for the 'SMTP' Classic
var SMTPCon = sulat.SMTPConfig{}
func init() {
// Initialize the 'SMTP' classic
SMTPCon = sulat.SMTPConfig{
Host: "smtp.host.com",
Port: 25,
UserName: "your@email.com",
Password: "your_smtp_password",
}
}
func main() {
// This is how to use the 'sulat' package using 'SendGrid' API key
// Prepare the HTML email content
mailOpt := &sulat.MailClassicHeader{
Subject: "Inquiry for the new ITR Sulat package",
From: "support@itrepablik.com",
To: []string{"email1@mail.com", "email2@mail.com"},
CC: []string{"email3@mail.com", "email4@mail.com"},
BCC: []string{"email5@mail.com", "email6@mail.com"},
}
//*****************************************************************************
// Use only either 'Method 1' or 'Method 2' for your email HTML content
//*****************************************************************************
// Method 1: Set full HTML template as your email content.
// e.g email marketing campaign template
htmlContent, err := sulat.SetHTML(&sulat.EmailHTMLFormat{
IsFullHTML: true,
FullHTMLTemplate: FullHTML,
})
// Method 2: Set this standard HTML header and footer but with different HTML body
// this is usually use when you've fixed header and footer content
// e.g standard email notifications such as password reset, email confirmation, etc.
htmlContent, err = sulat.SetHTML(&sulat.EmailHTMLFormat{
IsFullHTML: false,
HTMLHeader: HTMLHeader,
HTMLBody: bodyHTML,
HTMLFooter: HTMLFooter,
})
// Send email using 'SMTP' classic method
isSend, err := sulat.SendEmailSMTP(mailOpt, htmlContent, &SMTPCon)
if err != nil {
itrlog.Fatal(err)
}
fmt.Println("isSend: ", isSend)
}
Please consider subscribing to my Youtube Channel to recognize my work on this package. Thank you for your support! https://www.youtube.com/channel/UCdAVUmldU9Jn2VntuQChHqQ/
Code is distributed under MIT license, feel free to use it in your proprietary projects as well.
FAQs
Package gomail provides a simple interface to compose emails and to mail them efficiently. More info on Github: https://github.com/go-gomail/gomail A daemon that listens to a channel and sends all incoming messages. Efficiently send a customized newsletter to a list of recipients. Send an email using a local SMTP server. Send an email using an API or postfix.
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