<![CDATA[WHMCS Services Forum - MailerSend]]> https://forum.whmcsservices.net/ Fri, 10 Apr 2026 12:12:53 +0000 MyBB <![CDATA[Compatible Template]]> https://forum.whmcsservices.net/showthread.php?tid=399 Mon, 29 Dec 2025 20:47:25 +0000 wssupport]]> https://forum.whmcsservices.net/showthread.php?tid=399
SwiftModders (Latest Version) Click Here
Lara, WHMCS Admin (Latest Version) Click Here

Other Themes are not fully tested yet, so I am not sure if they work or not. You can contact me first. Click Here]]>
SwiftModders (Latest Version) Click Here
Lara, WHMCS Admin (Latest Version) Click Here

Other Themes are not fully tested yet, so I am not sure if they work or not. You can contact me first. Click Here]]> <![CDATA[HTTP Status Codes]]> https://forum.whmcsservices.net/showthread.php?tid=398 Mon, 29 Dec 2025 20:46:13 +0000 wssupport]]> https://forum.whmcsservices.net/showthread.php?tid=398
Click Here]]>
Click Here]]> <![CDATA[Important update: API daily quota]]> https://forum.whmcsservices.net/showthread.php?tid=397 Mon, 29 Dec 2025 20:45:41 +0000 wssupport]]> https://forum.whmcsservices.net/showthread.php?tid=397
I would like to share an important update about our API.

From March 23rd, 2022, at 12:00 UTC, we’ll be introducing a new daily quota to our API for all MailerSend accounts and an API Usage Policy as well.

This means there will be a maximum number of requests a single account can make within a 24-hour period. If you exceed the daily quota, the API or SMTP request will fail and return an HTTP 429 status code (but don’t worry—this can be easily avoided! See below).

The daily quota will:
  • Be applied at the account level. All API tokens and SMTP credentials of your account share the same quota
  • Be based on your account plan. Premium and Enterprise plans have a higher daily quota than Free plan holders
  • Count all API requests (valid or failed) and SMTP requests (authenticated only). We count an SMTP call when an SMTP client sends valid credentials and the DATA portion is sent through
  • Be refreshed at midnight UTC

How can you avoid hitting the quota?
  • Send your emails using the Bulk Email endpoint: you can send up to 35,000 in a single request
  • Use webhooks instead of polling for changes
  • Cache responses wherever possible instead of frequently making the same request
  • If you’re sending marketing content, consider using a dedicated marketing emailing tool like MailerLite and using MailerSend for all transactional messaging.
]]>
I would like to share an important update about our API.

From March 23rd, 2022, at 12:00 UTC, we’ll be introducing a new daily quota to our API for all MailerSend accounts and an API Usage Policy as well.

This means there will be a maximum number of requests a single account can make within a 24-hour period. If you exceed the daily quota, the API or SMTP request will fail and return an HTTP 429 status code (but don’t worry—this can be easily avoided! See below).

The daily quota will:
  • Be applied at the account level. All API tokens and SMTP credentials of your account share the same quota
  • Be based on your account plan. Premium and Enterprise plans have a higher daily quota than Free plan holders
  • Count all API requests (valid or failed) and SMTP requests (authenticated only). We count an SMTP call when an SMTP client sends valid credentials and the DATA portion is sent through
  • Be refreshed at midnight UTC

How can you avoid hitting the quota?
  • Send your emails using the Bulk Email endpoint: you can send up to 35,000 in a single request
  • Use webhooks instead of polling for changes
  • Cache responses wherever possible instead of frequently making the same request
  • If you’re sending marketing content, consider using a dedicated marketing emailing tool like MailerLite and using MailerSend for all transactional messaging.
]]> <![CDATA[Why I get this error Validation]]> https://forum.whmcsservices.net/showthread.php?tid=396 Mon, 29 Dec 2025 20:43:34 +0000 wssupport]]> https://forum.whmcsservices.net/showthread.php?tid=396
That's because your whole WHMCS system does not use the same Domain name that you registered with MailerSend
]]>
That's because your whole WHMCS system does not use the same Domain name that you registered with MailerSend
]]> <![CDATA[Installation Instructions]]> https://forum.whmcsservices.net/showthread.php?tid=156 Sat, 15 Nov 2025 17:03:16 +0000 whmcsservices]]> https://forum.whmcsservices.net/showthread.php?tid=156
1) Upload the entire folder to your website - if you experience problems, try uploading in binary mode. However, do not upload the “upload” folder, just the files inside of it!
2) Login to the admin area, go to Configuration > System Settings > ADDON MODULES
3) In the addon modules page, you will see the MailerSend click activate, then click configure to see the options
4) Activate the API tokens Click here, then click on Integrations
5) Check the Full Administrator box in the Access Control, then click Save Changes
6) You can access your module at 'Addons' → 'MailerSend'
7) Navigate to Configuration > System Settings > General > Mail
8) Click the Configure Mail Provider button
9) Choose MailerSend from the available dropdown list]]>
1) Upload the entire folder to your website - if you experience problems, try uploading in binary mode. However, do not upload the “upload” folder, just the files inside of it!
2) Login to the admin area, go to Configuration > System Settings > ADDON MODULES
3) In the addon modules page, you will see the MailerSend click activate, then click configure to see the options
4) Activate the API tokens Click here, then click on Integrations
5) Check the Full Administrator box in the Access Control, then click Save Changes
6) You can access your module at 'Addons' → 'MailerSend'
7) Navigate to Configuration > System Settings > General > Mail
8) Click the Configure Mail Provider button
9) Choose MailerSend from the available dropdown list]]> <![CDATA[Changelog]]> https://forum.whmcsservices.net/showthread.php?tid=155 Sat, 15 Nov 2025 17:00:31 +0000 whmcsservices]]> https://forum.whmcsservices.net/showthread.php?tid=155 Version: 2.0.3 Released (03/06/2026)
Maintenance

Fixed: License System
Fixed: PHP error

Version: 2.0.2 Released (01/26/2026)
Maintenance

Updated Support WHMCS 8.13.x & 9.0
Updated Improve Licence System
Removed Remove Support for WHMCS V8.10 to 8.11

Version: 2.0.1 Released (03/06/2025)
Maintenance

Changed: Licence System
Changed: work WHMCS 11.x & 12.x

Version: 2.0.0 Released (12/01/2024)
Stable

Added Email Verification
Added Transactional SMS
Added Daily request quota
Added Support PHP 8.3
Added Ioncube 14 Support
Removed Remove Support for PHP 7.4
Removed Remove Support for WHMCS V8.7 to 8.9
Fixed BCC

Version: 1.0.3 Released (01/04/2024)
Maintenance

Fixed support for ionCube Loader v13
Updated work with Licence System
Updated Improve ionCube Loader
Updated Remove Support for WHMCS V8.4 to 8.6

Version: 1.0.2 Released (12/02/2022)
Maintenance

Fixed Support PHP 8.1
Updated Remove Support for PHP 7.2 to 7.3
Updated Remove Support for WHMCS V8.2 to 8.3

Version: 1.0.1 Released (03/18/2022)
Maintenance

Added API daily quota over error

Version: 1.0.0 Released (10/08/2020)
Stable

New Initial Release]]> Version: 2.0.3 Released (03/06/2026)
Maintenance

Fixed: License System
Fixed: PHP error

Version: 2.0.2 Released (01/26/2026)
Maintenance

Updated Support WHMCS 8.13.x & 9.0
Updated Improve Licence System
Removed Remove Support for WHMCS V8.10 to 8.11

Version: 2.0.1 Released (03/06/2025)
Maintenance

Changed: Licence System
Changed: work WHMCS 11.x & 12.x

Version: 2.0.0 Released (12/01/2024)
Stable

Added Email Verification
Added Transactional SMS
Added Daily request quota
Added Support PHP 8.3
Added Ioncube 14 Support
Removed Remove Support for PHP 7.4
Removed Remove Support for WHMCS V8.7 to 8.9
Fixed BCC

Version: 1.0.3 Released (01/04/2024)
Maintenance

Fixed support for ionCube Loader v13
Updated work with Licence System
Updated Improve ionCube Loader
Updated Remove Support for WHMCS V8.4 to 8.6

Version: 1.0.2 Released (12/02/2022)
Maintenance

Fixed Support PHP 8.1
Updated Remove Support for PHP 7.2 to 7.3
Updated Remove Support for WHMCS V8.2 to 8.3

Version: 1.0.1 Released (03/18/2022)
Maintenance

Added API daily quota over error

Version: 1.0.0 Released (10/08/2020)
Stable

New Initial Release]]>