Two ways to buy the same outcome
Both SMTP2GO and Amazon SES take an email from your application and deliver it. You connect over SMTP or call an HTTP API, and both sign mail with DKIM on your domain. What differs is everything around that send: who watches for bounces, who you call when a spike of complaints hits, and how much of the reporting you build yourself.
SMTP2GO is a product. You log in, add a sender domain, copy SMTP credentials into WordPress, a CRM or your app, and you get a dashboard with 30 days of email reporting, subaccounts and support by phone and chat. Amazon SES is a service inside AWS. It is very good at sending at scale for very little money, and it assumes the team already knows how to manage IAM, CloudWatch and event pipelines.
Who each one is built for
SMTP2GO fits teams without an email specialist. Typical buyers are IT admins replacing an on-premise mail server, agencies relaying mail for client sites, and small SaaS teams that want password resets to arrive and do not want to think about it again. The New Zealand company runs servers in several regions and lets you choose where your email data is stored.
Amazon SES fits teams that already run production on AWS. If your app deploys to ECS or Lambda, your permissions live in IAM, and your alerts live in CloudWatch, SES slots into that stack. It also receives mail, which SMTP2GO does not, so products that parse replies or inbound documents can keep that in AWS too.
Which one fits your situation
| Situation | Better first look | Reason |
|---|---|---|
| Office systems, a CRM and a WordPress site all need a relay | SMTP2GO | One set of SMTP credentials per system, dashboard reporting, phone support |
| A SaaS app on ECS or Lambda sends receipts and resets | Amazon SES | IAM, CloudWatch and SDKs are already in place, and cost is lowest |
| An agency relays mail for 20 client sites | SMTP2GO | Subaccounts keep clients separate for reporting and billing |
| A product parses replies or inbound documents | Amazon SES | Receipt rules deliver inbound mail to S3, Lambda or SNS |
| Data must stay in Australia or Europe | Either | SMTP2GO offers US, Europe and Australia data centers; SES runs in many AWS Regions |
| The team also needs onboarding and billing sequences | Sequenzy | Lifecycle logic and sending in one tool |
What 100,000 emails a month actually costs
| Line item | SMTP2GO | Amazon SES |
|---|---|---|
| Sending 100,000 emails | $75 (Professional) | About $10 at $0.10 per 1,000 |
| Dedicated IP | Included on Professional | $24.95/month for a standard IP |
| Overage | $0.85 per 1,000 on Professional | Same metered rate |
| Attachments and data transfer | Included | $0.12 per GB |
| Human support | Included | AWS Support plan, billed separately |
| Starting point | Free for 1,000 emails, Starter $10 for 10,000 | $200 AWS Free Tier credits for new accounts |
At this volume SES is cheaper even after adding a dedicated IP. The honest adjustment is time. On SES somebody must set up the configuration set, subscribe to bounce and complaint notifications, store those events, feed them back into your user records and build a view that support can search. On SMTP2GO those pieces exist on day one. AWS also sells bundled SES plans with monthly fees; the $0.10 rate above is the pay-as-you-go option.
SMTP2GO's Starter plan at $10 for 10,000 emails is the better value for small senders who want reporting and support. SES wins as volume climbs: at a million emails a month, sending fees are roughly $100, while SMTP2GO lists custom Premier pricing above its published tiers.
Day-two operations
Deliverability monitoring. SMTP2GO reports on deliveries, bounces, spam complaints and opens in its dashboard. SES exposes sending statistics and reputation metrics, and offers Virtual Deliverability Manager as a paid add-on for deeper insight. Without it, you are reading CloudWatch metrics and your own event store.
Account health. AWS watches bounce and complaint rates on every SES account and can pause sending when they climb. That keeps the shared pool clean, but it means a bad import can stop your password resets. SMTP2GO also enforces sending standards, and you can reach a person when something goes wrong.
Templates. SMTP2GO lets you manage templates in the dashboard or through its API. SES templates are created and updated through the API, with no editor. Teams on SES usually render HTML in their own code.
The SES account-standing problem
The feature that surprises teams most on SES is not a feature at all. It is AWS's enforcement model. A new account starts in the sandbox: 200 messages a day, one per second, verified recipients only, and suppression list bulk actions disabled. You leave by filing a production access request describing your mail and how you process bounces and complaints. AWS gives an initial response within 24 hours.
After that, AWS watches two numbers. At a 5% bounce rate the account goes under review, and at 10% sending may be paused. Complaints should stay below 0.1%, and AWS can pause at 0.5%. Because a pause stops every message from the account, an imported list with stale addresses can block password resets. The standard defense is to create CloudWatch alarms on reputation metrics well below those thresholds and send marketing mail from a separate account or configuration set.
SMTP2GO enforces sending standards too, as every shared-IP provider must. The difference is that bounces and complaints are processed for you, reports show them without extra setup, and a human can tell you what triggered a problem.
Compliance and data location
SMTP2GO runs data centers in the US, Europe and Australia and lets you send and store data in the region you choose. It shows ISO 27001 certification and GDPR compliance on its site. SES runs in many AWS Regions, and sandbox status, identities and quotas are all per Region, so a multi-region setup means repeating verification in each one. SES inherits AWS's compliance programs, which helps if your security team already reviews AWS services.
For marketing mail to Gmail and Yahoo, both providers leave the list work to you: honoring unsubscribes, adding List-Unsubscribe headers and keeping spam complaints low. Authentication with SPF, DKIM and DMARC is supported on both.
Migrating between SMTP2GO and SES
Most migrations run from SMTP2GO to SES to cut cost, or from SES to SMTP2GO when the team that built the SES integration has moved on.
| What moves | SMTP2GO to SES | SES to SMTP2GO |
|---|---|---|
| Domain authentication | Add Easy DKIM CNAMEs and a custom MAIL FROM domain; update SPF | Add SMTP2GO's sender domain and tracking CNAMEs |
| Credentials | Create SMTP credentials from an IAM user, or switch to the AWS SDK | Create SMTP users or an API key per app or subaccount |
| Suppressions | Export bounces and unsubscribes, bulk import into the SES account-level suppression list | Export the SES suppression list and upload it to SMTP2GO |
| Templates | Recreate through the SES template API | Rebuild in the SMTP2GO dashboard or API |
| Event handling | Replace SMTP2GO webhooks with configuration sets publishing to SNS or EventBridge | Point SMTP2GO webhooks at the endpoint your SNS consumer used |
| Production limits | Request production access and a quota that covers peak volume | Pick a plan that covers peak volume |
Ramp traffic gradually. Send a slice of mail through the new provider, compare bounce and complaint rates and delivery latency for a week, then move the rest. Keep the old DNS records until the last queued messages clear.
Who owns email after launch
Setup is a one-time cost. Ownership is the ongoing one, and it is where these two tools diverge most. On SMTP2GO, the person who owns email can be an IT admin or an operations lead: they watch the dashboard, answer "did it send?" questions from 30 days of reports, and call support when something looks wrong. On SES, ownership sits with engineering. Someone maintains the event consumer, rotates IAM credentials, watches reputation alarms, and answers support questions by querying stored events.
That is not a reason to avoid SES. For a team that already runs AWS well, it is a small extension of existing on-call work. It is a reason to be honest about whether that team exists before choosing on price alone.
Where each one clearly wins
| SMTP2GO wins | Amazon SES wins |
|---|---|
| Setup without AWS knowledge | Lowest sending cost at every volume |
| Dedicated IP included at 100,000 emails | Inbound email handling |
| Phone support and 24/7 critical response | Native fit with IAM, Lambda, S3 and CloudWatch |
| Built-in reporting and client previews | Scales to very high volume without plan changes |
| Subaccounts for agencies | Managed dedicated IPs that warm up automatically |
Where Sequenzy fits, and where it does not
If all you need is a relay for application email, Sequenzy is not the cheaper answer. SES costs less at every volume and SMTP2GO costs less for small senders. Sequenzy also has no inbound processing.
Sequenzy makes sense when the relay is feeding a bigger job. Many SaaS teams run SES or SMTP2GO for receipts, then bolt on a newsletter tool, then write glue code to send trial reminders when Stripe reports a status change. Sequenzy covers the transactional API and SMTP relay, plus segments, automations, campaigns and native Stripe, Paddle and Polar triggers, with one suppression list. Pricing is by email volume with unlimited contacts: free up to 2,500 emails/mo, then $19/mo for 15k emails, and $99/month for 120k emails (unlimited subscribers) around the 100,000-email mark.
Questions to settle before you choose
Does anyone on the team already manage IAM, CloudWatch and SNS? If not, SES costs more in time than it saves in fees.
Will you pass a few hundred thousand emails a month within a year? The per-email gap then favors SES.
Do you need inbound mail? Only SES handles it.
Is phone support or a bundled dedicated IP a requirement? Only SMTP2GO includes both.
Choose SMTP2GO if the person maintaining email is not an AWS engineer, you want a dedicated IP included, or you want support by phone.
Choose Amazon SES if your platform already runs on AWS, volume is high, or you need to receive mail.
Look at Sequenzy if the send is the easy part and the hard part is deciding which lifecycle email each customer should get.
