I have a module which actually use the WHMCS sendmail Api command with 2 different Mail templates to send mails to affected clients. This command works good, but when I must send the mail to many clients, the script need many time and the team member must wait this time, because the script is processing.
I need someone who can modify the module to integrate a own mass mailer (phpmailer for example) with queue who can handle the sending of the mails in the background.
Btw: It is a matter of a module with inform the clients about network issues (like the whmcs own function), where the client can choose which typ of informations they want to receive (maintanance, Security, General,..).
If you are interested on this Job, please make me an offer.