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Pro Deliverability Tools

For big volume senders and ESPs, we provide pro deliverability tools which allow you do auto & managed IP warmup, control email throttling and do intelligent routing at IP and email ISP level.

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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.

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Pro Deliverability Tools

Our pro deliverability tools for power users ensure that you can control the innerworkings of email sending be that IP warmup, email rate limiting, email routing or ISP specific email sending.
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Everything you need

All-in-one platform

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.

Email API & SMTP Relay
We have API SDKs present in over 14+ programming languages - Java, PHP, NodeJS, Ruby, Python etc. You can also connect us in old fashioned way using SMTP relay. Email API Feature Arrow
Sub-Accounts & Groups
Segregate your email sending for products, customers or email types using Sub-Accounts. Get detailed analytics for specific email types using groups. Email API Feature Arrow
Sub-Account & IP Stats
Know your deliverability, bounce, open and click rate at both sub-account and IP level. We show stats for aggregated SMTP errors and your inboxing on major ISPs - gmail, yahoo, outlook, aol etc. Email API Feature Arrow
Event Logging
Debug any deliverability issue based on a sub-account or IP by SMTP code, description, recipient, sender and more. 90 day log retention and super fast search. Email API Feature Arrow
Dedicated & Shared IPs
If you are getting started you can use our shared IP pools for email sending. For big senders, manage your own dedicated and shared IP pools. Email API Feature Arrow
Validation API
Clean your list by removing hard bounce, spam traps, invalid emails, email typos, honey pot email addresses and more. Email API Feature Arrow
Alerts & Notification
Setup automated alerts and notification through slack & email when specific sub-account or IP deliverability suffers or your hard bounce has increased. Email API Feature Arrow
Rate limiting, Throttling & Routing
For power users, you can control speed of email sending and throttling at an IP. You can also route emails from an IP Pool based on specific rules. Email API Feature Arrow
Get automatically notified on various email events. Process this data or integrate with your own application. Email API Feature Arrow
Deliverability CRM
Automated incident creation when your domain gets blacklisted, deliverability decreases or bounce percentage changes. Email API Feature Arrow

Trusted by developers, businesses and ESPs

Companies of all sizes are using SendPost to reliably deliver emails.
413+ Million Emails Sent
24/7 Support
99.23% Average Deliverability
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