VCVendorClue
Methodology

Documentation-based comparison

SMTP2GO versus Postmark

Compare documented scope and conditions. Unknowns remain unknown; different billing units do not establish a cost winner.

Documented scope and limits; unverified dimensions remain unknown.
RequirementSMTP2GOPostmark
Pricing
From $15/mo

Compare all 4 plans

From $15/mo

Compare all 5 plans

Who it is for
Email delivery for transactional email from apps, everyday email from Outlook and marketing email with an unsubscribe link.

Verified Oct 11, 2026 · SMTP2GO homepage

Sends transactional email and keeps bulk or broadcast email on separate Message Streams.

Verified Oct 11, 2026 · Postmark: official product and plan documentation

Coverage limits
The free plan is limited to 200 emails a day and does not allow extra emails.

Verified Oct 11, 2026 · SMTP2GO pricing, loaded monthly plan cards

There is no tier between the free 100 emails a month and the 10,000-email paid tier.

Verified Oct 11, 2026 · Postmark: official product and plan documentation

Sending volume
  • Free 1,000 emails per month
  • Starter 10,000 emails per month
  • Professional 100,000 emails per month
  • Premier More than 3,000,000 emails a month
Unused emails do not roll over to the next billing period.

Verified Oct 11, 2026 · Postmark: official product and plan documentation

  • Free 100 emails per month
  • Basic 10,000 emails per month
  • Pro 10,000 emails per month
  • Platform 10,000 emails per month
Sender domains
SPF and DKIM are set up automatically for your sending domains.

Verified Oct 11, 2026 · SMTP2GO homepage

  • Free 10 custom sending domains
  • Basic 5 custom sending domains
  • Pro 10 custom sending domains
  • Platform Unlimited custom sending domains
Log retention
  • Free 5 days of email reporting
  • Starter 30 days of email reporting
  • Professional 30 days of email reporting
Custom activity retention starts at USD 5 a month and is only available on Pro plans or higher; statistics are kept indefinitely.

Verified Oct 11, 2026 · Postmark: official product and plan documentation

  • Basic 45 days
  • Pro Customizable up to 365 days; 45 days by default
  • Platform Customizable up to 365 days; 45 days by default
Webhooks and eventsNot verified
Inbound email is converted to JSON and posted to your webhook URL.

Verified Oct 11, 2026 · Postmark: official product and plan documentation

  • Pro Inbound email processing included
  • Platform Inbound email processing included
Dedicated IP
  • Professional Dedicated IP address included
From USD 50 a month per IP, for accounts sending 300,000 or more emails a month on Pro or higher.

Fully managed by Postmark.

Verified Oct 11, 2026 · Postmark: official product and plan documentation

Support
Starter: ticket, chat and phone support.

Verified Oct 11, 2026 · SMTP2GO: official product and plan documentation

  • Free Ticket support; toll-free phone and live chat for the first 14 days only
  • Professional Ticket, chat and phone support
Support requests are handled by the customer success team through support tickets.

The pricing page lists no support level per plan.

Verified Oct 11, 2026 · Postmark support centre

Overage charges
  • Free Extra emails are not permitted on Free.
Extra emails on paid plans are calculated at the end of the billing cycle and added to the next month's charge.

Verified Oct 11, 2026 · Postmark: official product and plan documentation

  • Free No overages are allowed on Free.
Coverage note

At the default volume shown.

Starting tier; unlimited emails per day.

Not listed on the Basic card.