Sending over 413+ million emails per month
IP Warmup on Auto-Pilot
We save weeks of effort by doing new IP warmup for you. A part of your email traffic go over your fresh new IPs and any overage goes over our shared IPs. You can either let our auto IP warmup control the limit or override it on your own.
Throttle to Inbox
You can control the number of emails sent and concurrent connections on all major ISPs with SendPost. Our stats help you uncover specific SMTP issues happening on specific IP & ISP - say high bounce or deferral percentage. You can control these settings to keep ISPs happy.
BackOff Settings to Safeguard
Our backoff settings ensure you can sleep soundly with zero tension. We can automatically reduce email sending speed and connections when we encounter high hard bounce or deferral percentage from a specific ISP.
Intelligent Email Routing
You can route your emails on as many IPs as you want 5 or 500 using our intelligent email routing. You can do a plain old round robin or volume based email routing over your IP sending infrastructure with ease.
Smart Email ISP Sending
Some ISPs may stop accepting emails from some of your IPs either because they are new or due to high bounce or deferral percentage. SendPost solves your ISP specific deliverability woes by routing specific ISP emails from a specific IP.
Everything you need
Simple email sending & validation API, powerful analytics, smart alerting system and power deliverability optimisation tools make SendPost standout as the most forward thinking email API service.