Email Plus+

Email Plus+

Developed By GriffinHosting

Compatible with WHMCS v8.8

Email Plus+ Takes your WHMCS system to the next level with direct integration with the leading transactional email providers and provides the following key features –

  • Supports Sendgrid, Postmark, Mailgun, Mailjet, Sparkpost, Sendinblue, smt2go, Mandrill(Mailchimp) and AmazonSES providers.
  • Schedule email for later delivery (Sendgrid and Mailgun).
  • Email messages sent via post to HTTPS API bypassing the need for a local SMTP mail server. (Your webhost forcing you to use their mail servers, which are always blacklisted? This will fix that!)
  • Secondary Fail-over provider can be configured for each template.
  • Multiple providers can be enabled at the same time. Each email template is uniquely configured.
  • Supports callback webhooks, which enable real-time tracking of delivery, bounces, drops, opens and clicks.
  • Configurable tracking tags for each template, allowing for detailed reporting with your provider of choice.
  • Inbound Email Parsing – Configure email addresses with your provider, and post them directly into the WHMCS ticket system. No more pipe/pop cron jobs needed. Tickets updated instantly.
  • Create a Unique Email template for each support department. You are no longer forced to use a single template to auto respond to support tickets opened by your clients.
  • Bonus Feature : Cron hook to automatically delete closed support tickets from inactive clients after X number of days.
  • Bonus Feature : Cron hook to purge inactive client emails after X number of days.
  • Bonus Feature : Email Validation hook at registration time. Check every clients email address at registration time to verify it has a valid MX record, and optionally block free, temporary or invalid email addresses. Stop bounced emails before they happen! Supports Quickemailverification, Mailgun and Kickbox.


Your email, delivered.

  • We don’t just send your email, we deliver it. Our software automatically manages the delivery process to give your emails the best chance of landing in the inbox. And if something happens that keeps your messages from being delivered, we’ll tell you.
  • Built upon the world’s largest email delivery infrastructure, providing you with the industry’s best reliability, scalability, and email deliverability.
  • 20% of legitimate emails never reach the inbox. For your business, that means lower customer satisfaction, lost customers and less revenue.
  • All emails sent utilizes opportunistic TLS encryption—as long as your recipients’ mail servers are configured to support TLS, your mail will be protected from interception/modification by a passive adversary.
  • Cloud-based email delivery infrastructure allows you to send email without having to maintain your own in-house email infrastructure.
  • Add custom tracking to your emails, including opens, clicks, and automatic Google Analytics parameters. View and filter stats on bounces, opens, clicks, and spam complaints. Then, use that information to tweak your content and triggers.


  • Annual License - $49.99 Per Year
  • Monthly License - $4.99 Per Month


  • Need a simple, complete packaged solution? Take a look at our other product IrisMail here -



5 stars
4 stars
3 stars
2 stars
1 star

John Hunter @amir8734

May 23, 2022 at 04:00:51 AM

Thank you for developing this product.

  • 2 years ago
  • Version Number 13.7
  • Edited

Duncan Isaksen-Loxton @duncan6289

May 21, 2022 at 01:52:04 AM

Couldnt live without this, so useful for managing support ticket responses on schedules, piping email from postmark.

We had a request for importing based on the reply-to email. This is because our website has a couple of forms that we cant build in WHMCS. The website send from our domain, not from the submitter of course. This means the submitter is in the reply-to header. The team obliged and in a week or so we had a new feature - massive time saver for us!


  • 2 years ago
  • Version Number 13.7

Am In @rusdi6875

July 27, 2018 at 06:13:32 AM

One of the best WHMCS module I ever used, 100% recommended.

  • 5 years ago
  • Version Number 11.1

Neil Batchelor @neil8560

July 23, 2018 at 03:47:07 AM

Highly recommend this plugin. Great functionality and really quick responsive support.

  • 5 years ago
  • Version Number 10.0

Terry Byrne @terry1305

May 3, 2018 at 08:38:28 PM

Installed this on one WHMCS to see if it would help delivery issues. Most of our billing and reminders where been marked as SPAM. We tried to use SMTP directly with Postmark and mailgun but the server environment was too secure and it did not work. So we found this add-on that uses API Key and wow all our issues where gone!

We set it up to use two providers, mailgun and as a standby Postmark. Two months later and we have had a 100% delivery rate and no more cranking clients saying they never got there billing reminder!

Just finished setting this up on a second WHMCS and starting on a third one next week. For 3 bucks a month this is the best value and most useful 3 bucks a month I have ever spent.

Support is great too, even when you are having a homer moment at 2am in the morning they reply with the answers, and appear to overlook the fact that you are having that homer Duh moment!

Great work guys, love that it runs on PHP 7.2 too!

  • 6 years ago
  • Version Number 8.0

David Brown @sai5625

March 30, 2018 at 08:46:13 PM

the Best addon ever, all my WHMCS eMails are delivered to inbox without any issue, i highly recommend this addon :D

  • 6 years ago
  • Version Number 7.2

Mark David @Mark-D

January 14, 2018 at 01:46:55 AM

This module is absolutely amazing. It allows me to do what I haven't been able to do for years because of SMTP limitations by my hosting provider. Now, I can finally send all my emails through SendGrid again! Best of all, I don't have to log into SendGrid to see anything. All of the stats are available through the module right within WHMCS! This is absolutely genius!

Also, support is extremely responsive. Normally your questions or issues are resolved within a matter of hours (or less).

Thank you, James, for such an amazing module. This one's a winner in my books! =D

  • 6 years ago
  • Version Number 7.2

Diego Fabiano @altomarketing

December 21, 2017 at 11:45:23 PM

Excelent product and fast support, ITS A MUST TO HAVE IT !!

Thanks !

  • 6 years ago
  • Version Number 7.2

Sujit Philip @netsujit

August 9, 2017 at 12:31:41 PM

This is an amazing addon that lets you use your preferred ESP for better email delivery compared to using your own SMTP. You don't need to leave your whmcs to verify if your email was delivered/opened/clicked or not.

Few things I like about Email Plus:
- support for multiple ESP API, mailgun, sendgrid, sparkpost, postmarkapp, mailjet, and more.
- you can use different ESP for different templates. i.e. sendgrid for welcome emails and mailgun for password resets
- use different ESP based on client's email address. i.e. sendgrid for all addresses with and postmarkapp for all other domains
- support ticket raised automatically with inbound parsing
- open and click tracking stats available within whmcs admin panel
- email address validation and blocking disposable addresses during user registration. Useful to avoid bounces and mail rejections with your email service provider.
- you can add categories and tags to outgoing emails - useful if you are into email stats and analytics with your email service provider.

And the best part... the developer actively responds to your queries and feature requests. If you are worried about your transactional email delivery for whmcs, try this plugin.

  • 6 years ago
  • Version Number 6.0
  • Edited

Kevin Brackley @StrataCorps

July 27, 2016 at 03:31:42 AM

Having used Mandrill and Sendgrid to track transnational emails to our clients has been a great tool for proof of delivery. Now you can view the results directly from within the WHMCS administrative interface!

Support has been great...prompt to respond and understand our questions and respond with solutions quickly.

I can't wait to see how this grows--maybe by adding Amazon's AES to the already full support of Mailgun, Mandrill and Sendgrid.

James Griffin @GriffinHosting

August 31, 2016 at 08:19:04 PM

Thanks Kevin. AES is next on our list to add support.

  • 7 years ago
  • Version Number 4.0

Version Compatibility

Compatible with WHMCS v8.8

Full Version Compatibility

  • Selected versions of WHMCS v8.8
  • All versions of WHMCS v8.7
  • All versions of WHMCS v8.6
  • All versions of WHMCS v8.5
  • All versions of WHMCS v8.4
  • All versions of WHMCS v8.3
  • All versions of WHMCS v8.2
  • All versions of WHMCS v8.1
  • All versions of WHMCS v8.0

System Requirements

  • PHP 7.2 - 8.1
  • Ioncube

* Requirements listed are in addition to the WHMCS default system requirements.

Support for this product

The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.

Developed By GriffinHosting


v15.1 Released September 1st, 2023

Latest Version

  • Added support for
  • Fixed issue with missing subject on inbound emails.
  • Updated Sendinblue to Brevo (re-branded). You will need to re-configure this provider using Brevo settings.
  • Removed support for Pepipost, as this service no longer accepts new signups and is re-branding as Netcore.


Previous Versions

v15.0 Released April 20th, 2023

View/hide detailed changelog

  • Removed support for legacy webhooks in Mailgun.
  • Removed dependency on PHPMailer. (Now uses WHMCS Mail provider module). See install/upgrade instructions.
  • Minor bug fixes and performance enhancements.
  • This version does not support Pepipost at this time. Do not upgrade if using this provider.


v13.7 Released January 27th, 2022

View/hide detailed changelog

Version 13.2 -

  • Fixed issue with ticket autoresponder settings.
  • Fixed issue with logging of custom emails.
  • Fixed issue when de-activating module.
  • Added additional Amazon SES regions.

Version 13.3 -

  • Fixed issue with Mailgun Inbound.

Version 13.4 -

  • Fixed issue with importing CC emails to ticket system.

Version 13.5 -

  • Fixed issue with cron error.

Version 13.6 -

  • Fixed typo in hook process.
  • Fixed issue with smtp2go.

Version 13.7 -

  • Fixed issue with inbound processing using WHMCS 8.4.


v13.1 Released October 9th, 2020

View/hide detailed changelog

Compatible with WHMCS 8.0 and PHP 7.4


v11.1 Released July 20th, 2018

View/hide detailed changelog

  • Added new feature : Unique support ticket email templates for each department.
  • Better detection of Administrative email tracking.
  • Fixed error with missing unixtojd function.
  • Fixed bug with postmark inbound ticket processing.


v10.0 Released July 5th, 2018

View/hide detailed changelog

  • Added support for Amazon SES email service.
  • Squashed some bugs in displaying validation logs.
  • Updated Postmark API calls to include Metadata.


v9.0 Released June 1st, 2018

View/hide detailed changelog

  • This version no longer requires any 3rd party software located in modules/addons/email_plus/vendor. (You can safely remove the vendor folder and all files in it).
  • Sendinblue has been updated to use the version 3.0 api. You will need to request a new v3 API Key after upgrading Email Plus+, and reconfigure the addon settings.
  • Email Validation is now logged and has it's own page to review history.
  • New "Diagnostics" page to help in trouble-shooting issues.
  • Templates now support a "Primary" and "Secondary" provider. Email Plus+ will attempt to use the secondary, should the primary provider be offline, or rejecting your send request.


v8.0 Released April 9th, 2018

View/hide detailed changelog

  • Supports PHP 5.6 - 7.2 (requires Ioncube 10.1 or higher).


v7.2 Released November 7th, 2017

View/hide detailed changelog

  • The ablility to schedule email delivery for a later time (only supported with Mailgun and Sendgrid at this time).
  • Postmark click webhooks now enabled and tracked.
  • Minor bug fixes and performance improvements.


v7.0 Released August 3rd, 2017

View/hide detailed changelog

  • Added support for Sparkpost.
  • Added support for Mailjet.
  • Added support for Sendinblue.
  • Added Email Validation hook at registration time.
  • Minor bug fixes and performance updates.
  • Improved email tracking and logging.


v6.0 Released May 23rd, 2017

View/hide detailed changelog

  • Added new provider Sendinblue.
  • Added ability to send system / administrative emails via a 3rd party provider.
  • Minor bug fixes and performance enhancements.


v5.0 Released November 25th, 2016

View/hide detailed changelog

  • Fully updated to support WHMCS 7.X and PHP 7. (Note: requires PHP 5.6 or higher with Ioncube 5.0 or higher, and WHMCS 6.X or higher. WHMCS 5.3 is no longer supported in this version).
  • Added support for Postmark.
  • Open Source version now available.
  • Minor bug fixes and performance improvements.
  • Ability to modify X-Mailer Header Value.


v4.2 Released July 25th, 2016

View/hide detailed changelog

  • Minor bug fixes.


v4.0 Released May 19th, 2016

View/hide detailed changelog

  • Initial public release.


See also

Discord Notifications

A simplistic, free & open source hook allowing instant Discord notifications when an action is triggered.

Netgsm Sms

Netgsm Sms addon provides you sending customized bulk sms and creating sms templates.

MSG91 SMS/OTP Plugin

MSG91 WHMCS SMS plugin gives you the power and flexibility to stay connected with your customers by sending them an SMS and OTP's for 2FA at the crucial steps that matters the most.

SMS Manager

More Advanced SMS System

SMS Alert

Send automated SMS alert from WHMCS, and verify users mobile with OTP