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It's a split decision.
Choose Twilio SendGrid if you need campaign tools, a 60-day trial, and published monthly tiers from $19.95. Choose SendPost if you prioritize ISP-level deliverability visibility and sending controls, and its listed $7 Starter tier fits your volume. SendPost’s overage rate is not published, and current self-serve pricing is available on request after a demo. Neither option has a free plan listed; SendGrid’s trial includes 100 emails per day.
01Side by side
| Twilio SendGrid | SendPost | |
|---|---|---|
| Starting price | From $19.95/month for 50,000 emails | From $7/month; overage rate unpublished |
| Free plan | No free plan; 60-day trial, 100 emails/day | No free plan or trial listed |
| Best for | Campaigns and API email delivery | Deliverability teams managing sending traffic |
| Core strength | Email API, SMTP, and campaign tools | Deliverability analytics and sending controls |
| Learning curve | API documentation supports developer integrations | Routing, throttling, and automation controls |
| Integrations/data | API, SMTP, and event webhooks | API, SMTP, webhooks, Slack alerts |
| Team/seat costs | One additional teammate; extra support costs more | Seat limits and costs not published |
| Support | Partners; paid personalized support and expert services | Support details not published |
Twilio SendGrid Choose Twilio SendGrid if
- Choose Twilio SendGrid if you need campaign tools alongside email delivery.
- Choose Twilio SendGrid if a 60-day trial helps you evaluate sending.
- Choose Twilio SendGrid if you want published monthly volume tiers.
SendPost Choose SendPost if
- Choose SendPost if ISP-level deliverability visibility matters most.
- Choose SendPost if you need per-ISP throttling and routing controls.
- Choose SendPost if the listed $7 Starter tier fits your volume.
02Pricing compared
SendPost’s recorded public tiers start at $7/month for 10,000 emails. Growth is $197/month for 600,000, and Scale is $997/month for 3 million. But its overage rate is not published, and current self-serve pricing is available on request after scheduling a demo, so confirm the terms before switching.
SendGrid’s paid Essentials tiers start at $19.95/month for 50,000 emails; 100,000 costs $34.95/month. Pro starts at $89.95/month for 100,000 emails and includes one dedicated IP. Its pricing page does not publish overage rates; secondary documentation lists them. Neither product lists a free plan. SendGrid does list a 60-day trial, capped at 100 emails per day. Annual prices are not published for either service.
03Features and depth
SendGrid covers delivery through an Email API and SMTP service, alongside campaign tools for marketers. Its plan limits matter: Essentials includes two event webhooks and three days of email history, while listed Pro tiers include one dedicated IP, 2,500 validations per month, 60 testing credits per month, and seven days of history. The homepage says SendGrid delivers more than 200 billion emails monthly; that is a company claim, not a comparison of your likely results.
SendPost’s feature set is more focused on sending operations and deliverability. It tracks ISP responses, IP and domain reputation, and sender performance. Its controls include per-ISP throttling, queues, routing, and shared or dedicated IP pools. It also lists AI alerts for bounces, deferrals, and reputation changes, plus automation for warmup, retries, and backoff. Both offer an API, SMTP, and event webhooks. SendGrid is the clearer fit when campaign creation matters; SendPost puts more emphasis on visibility and traffic controls.
04Ease of use and learning curve
SendGrid gives developers an Email API, SMTP service, and API documentation, while its campaign tools serve marketers. Its options are split across Essentials, Pro, and Premier, with volume limits and differences in history, validations, testing credits, and IP access to check before moving a sending program.
SendPost also supports API and SMTP connections, but its routing, per-ISP throttling, queues, warmup automation, and deliverability CRM point toward a more operational workflow. That depth may suit a team responsible for diagnosing delivery problems; it may be unnecessary if you mainly need campaign tools. SendPost’s current self-serve pricing requires a demo, adding a step before a price comparison. Neither product’s published materials establish setup time or a specific learning curve.
Questions people ask
Which service is cheaper?
SendPost has the lower listed entry tier: $7/month for 10,000 emails, compared with SendGrid Essentials at $19.95/month for 50,000. Those tiers include different volumes, and SendPost’s overage rate is not published. Its current self-serve pricing is available on request after a demo.
Does SendGrid or SendPost include marketing campaigns?
SendGrid lists campaign tools for marketers as well as its Email API and SMTP service. SendPost’s listed capabilities focus on email delivery, deliverability analytics, traffic controls, and operational workflows; the published product information does not list campaign creation tools.
Can I try either service for free?
Neither product lists a free plan. SendGrid lists a 60-day free trial with a limit of 100 emails per day. The published SendPost pricing information does not list a free trial, so check with SendPost about evaluation access.
Which is better for monitoring deliverability?
SendPost lists ISP response tracking, IP and domain reputation monitoring, alerts, and controls such as per-ISP throttling and routing. SendGrid offers delivery tools and event webhooks, but its published feature details place less emphasis on this kind of deliverability visibility.