Hello,
I can enable you to send bulk email using SendGrid using PHP. Also, can customize the email so it can add each email a unique ID for tracking purposes. It would be better to have a close discussion over chat to start work right away.
I have good knowledge of Email management system and Email hosting providers like MailChimp, SendGrid, Zendesk, etc. I am well qualified for this job.
I am very confident to provide you the best quality work results.
Best Regards,
Mukesh