High Volume SMTP & PHPMailer Setup

Job ID: 40407470

Budget: $50 – $100 USD

I’m gearing up to send well over 10,000 emails every day from a PHP-based system and need an SMTP specialist who can wire everything together with PHPMailer. The core goal is straightforward: rock-solid deliverability at scale without triggering spam filters or throttling limits.

Here’s what I need from you:

• Configure or recommend the most suitable SMTP service (I’m open to SendGrid, Mailgun, Gmail-based routing, or a self-hosted relay—whatever best matches high-volume throughput).
• Set up SPF, DKIM, and DMARC so the domain reputation stays clean.
• Supply a lean, reusable PHPMailer script that I can drop into my application, complete with clear variables for host, port, auth, and encryption.
• Implement bounce handling, basic queue or rate-limit logic, and a test proving at least one successful bulk batch run.
• Provide concise documentation that shows me how to adjust credentials and scale further.

If you’ve already delivered similar high-volume projects and can show proof of inbox placement, let’s get this running quickly.