I am trying to send reliable emails from a local host and looking for an extension which is suitable for multiple email sender. If anyone knows, please let me know. Thanks in advance!
For multi email senders, you can use Magento 2 SMTP Extension.
It also has other amazing features such as:
When purchasing this extension, you can have it freely installed on your website by our developer. For further information, please contact LandOfCoder via:
Hope this helps!
This Magento 2 Multiple Order Emails Extension might be exactly what you need.
To find more information, you should try its demos and read the user guide here.