Skip to content
inetGeek

SMTP2GO vs Mailgun

SEPT 2026 audit

A comparison of SMTP2GO and Mailgun built from values read directly from each provider's own documentation, with the source recorded against every figure.

Reviewed by Palash BagchiUpdated 15 criteria comparedSources last checked

The short answer

Choose SMTP2GO if…

Steady sending where the overage rate matters more than the plan fee — $0.85 per thousand on Professional is the lowest published here, and 30 days of reporting comes on every paid tier rather than as an upgrade.

Editorial · Palash Bagchi · approved

Choose Mailgun if…

Senders who want inbound routing included from the free plan up, and who treat the message log as a debugging tool rather than a record.

Editorial · Palash Bagchi · approved

Consider something else if…

  • SMTP2GO: A dedicated IP needs the $75 Professional plan, and the entry tier's 10,000 emails is a quarter of what Resend includes for twice the price.
  • Mailgun: One day of log retention on the entry plan is the shortest here by a wide margin, and the overage rate is quoted as "from", so the number you plan against is a floor.

Neither quite fits? Every other option, ranked by iScore: SMTP2GO alternatives · Mailgun alternatives

7 sourced criteria separate them — see where, with sources, below.

Visit SMTP2GO documentationVisit Mailgun documentation

No affiliate links, sponsored placements or paid rankings appear on this site. Ordering follows the sourced data and the stated criteria.

01.

At a glance.

CriterionSMTP2GOMailgun
Pricing
Free tierYesYes
Kind of free offerFree tierFree tier
What the free plan includes1,000 emails a month.Limited to one user per account; Mailgun states the per-user cap on the free plan rather than a volume on this page.
Entry paid plan
$10/month for Starter, or $100 a year. Professional is $75/month.
$15/month for Basic, described as a starting price.
Pricing modelMonthly or annual volume plans — the annual price is ten months' worth — with per-thousand overage that improves on the larger plan, and SMS billed alongside email.Monthly plan by volume with per-1,000 overage, and email validations billed separately at around $1.20 per 100.
Email
Emails included
10,000 a month on Starter and 100,000 on Professional. The free plan allows 1,000.
10,000 a month on Basic; 50,000 on Foundation at $35. The free plan is capped at 100 a day rather than a monthly figure.
Price per 1,000 over
$1 per thousand on Starter, falling to $0.85 on Professional — the cheapest published overage of any provider here.
From $1.80 per 1,000 on Basic and from $1.30 on Foundation. Mailgun writes "from", so these are floors rather than fixed rates.
Log retention
30 days of email reporting, on Starter and Professional alike rather than rising with the plan.
1 day on Free and Basic; 5 days of logs and 1 day of message retention on Foundation.
Dedicated IPLimitedLimited
Support
Support on entry paid planTicket, chat and phone support on Starter ($10/month), the cheapest plan.Ticket support, named on the free plan. The Basic plan's feature list at $15/month does not restate a support level.

Only criteria both providers publish appear here; a tinted cell marks a real difference. Criteria only one of them documents are listed below, and an absence there means we found no source — not that the feature is missing. How we source this.

The small bar above a value is inetGeek's own lean toward that side — computed from the same facts shown, never a number the provider published. See the picker below "The short answer" to weigh only the criteria you care about.

02.

Where they differ.

What the free plan includes

SMTP2GO
1,000 emails a month.
Mailgun
Limited to one user per account; Mailgun states the per-user cap on the free plan rather than a volume on this page.
Sources (2) →

Entry paid plan

SMTP2GO
$10/month for Starter, or $100 a year. Professional is $75/month.
Mailgun
$15/month for Basic, described as a starting price.
Sources (2) →

Pricing model

SMTP2GO
Monthly or annual volume plans — the annual price is ten months' worth — with per-thousand overage that improves on the larger plan, and SMS billed alongside email.
Mailgun
Monthly plan by volume with per-1,000 overage, and email validations billed separately at around $1.20 per 100.
Sources (2) →

Emails included

SMTP2GO

10,000 a month on Starter and 100,000 on Professional. The free plan allows 1,000.

Mailgun

10,000 a month on Basic; 50,000 on Foundation at $35. The free plan is capped at 100 a day rather than a monthly figure.

Sources (2) →
  • Pricing — SMTP2GO ↗

    “Starter [...] 10,000 emails/mo [...] Professional [...] 100,000 emails/mo [...] free plan for up to 1,000 emails per month”

    Read 2026-09-06 · official pricing · Report a correction

  • Pricing — Mailgun ↗

    “Basic Starting at $15/mo 10,000 emails/mo included [...] $35/mo 50,000 emails/mo included [...] Free [...] 100 emails/day included”

    Read 2026-09-06 · official pricing · Report a correction

Price per 1,000 over

SMTP2GO
$1 per thousand on Starter, falling to $0.85 on Professional — the cheapest published overage of any provider here.
Mailgun
From $1.80 per 1,000 on Basic and from $1.30 on Foundation. Mailgun writes "from", so these are floors rather than fixed rates.
Sources (2) →

Log retention

SMTP2GO

30 days of email reporting, on Starter and Professional alike rather than rising with the plan.

Mailgun

1 day on Free and Basic; 5 days of logs and 1 day of message retention on Foundation.

Sources (2) →

Support on entry paid plan

SMTP2GO
Ticket, chat and phone support on Starter ($10/month), the cheapest plan.
Mailgun
Ticket support, named on the free plan. The Basic plan's feature list at $15/month does not restate a support level.
Sources (2) →
  • SMTP2GO Pricing ↗

    “10,000 emails/mo 30 days of email reporting ticket/chat/phone support subaccount management sms messaging”

    Read 2026-09-14 · official pricing · Report a correction

  • Mailgun Pricing ↗

    “100 emails per day ticket support restful email apis and smtp relay 1 custom sending domain tracking, analytics, and webhooks”

    Read 2026-09-14 · official pricing · Report a correction

When these numbers change, hear about it. Sources are re-checked monthly; a repricing goes out as a short note.

Confirm by email; unsubscribe from any issue. Your address goes to Kit and nowhere else — what we do with it.

03.

Documented by only one.

These criteria are published by one provider and not the other. An absence here means we have not found a source, not that the feature is missing — except where we say we read the other provider's own page on a given date and it does not state it. Those rows lean, and the provider can correct them with a link.

Credit card to startSMTP2GO: No
Inbound emailMailgun: Supported
SOC 2Mailgun: In addition to our partnership with an industry-leading hosting provider, Sinch Mailgun is SOC 2 Type II and ISO/IEC 27001 Certified, as well as  GDPR compliant .
GDPR / data residencyMailgun: In addition to our partnership with an industry-leading hosting provider, Sinch Mailgun is SOC 2 Type II and ISO/IEC 27001 Certified, as well as  GDPR compliant .
Encryption at restMailgun: AES-256 encryption-at-rest for all customer data
04.

Questions this comparison answers.

Entry paid plan: SMTP2GO or Mailgun?

SMTP2GO: $10/month for Starter, or $100 a year. Professional is $75/month.

Mailgun: $15/month for Basic, described as a starting price.

Should I choose SMTP2GO or Mailgun?

Pick SMTP2GO if Steady sending where the overage rate matters more than the plan fee — $0.85 per thousand on Professional is the lowest published here, and 30 days of reporting comes on every paid tier rather than as an upgrade.

Pick Mailgun if Senders who want inbound routing included from the free plan up, and who treat the message log as a debugging tool rather than a record.

Provider pages

SMTP2GOSMTP relay and email API with volume plans, 30 days of reporting on every tier and the lowest published overage rate in this set.MailgunEmail API priced by monthly volume, with short log retention on entry plans and inbound routing.

Related comparisons

AhaSend vs MailgunAhaSend vs SMTP2GOMailerSend vs MailgunMailerSend vs SMTP2GOMailgun vs Amazon SESPostmark vs MailgunResend vs MailgunSMTP2GO vs Amazon SES

Comments

Every page here is sourced and dated.