Staxly

Mailgun vs Upstash

Email API for developers with deep deliverability tooling
vs. Serverless Redis + Kafka + Vector + QStash — per-request pricing

Mailgun websiteUpstash website

Pricing tiers

Mailgun

Free
100 emails/day. 1 custom domain, 1-day log retention, 1 inbound route. No credit card.
Free
Basic
$15/month. 10,000 emails/month, no daily limit, 5 inbound routes.
$15/mo
Foundation
$35/month (1st month free). 50,000 emails/month, 1,000 custom domains, 5-day retention.
$35/mo
Scale
$90/month. 100,000 emails/month, SAML SSO, 5,000 email validations, dedicated IP pools, 30-day retention.
$90/mo
Enterprise
Custom. Deliverability services, managed onboarding.
Custom
Mailgun website

Upstash

Free
Redis: 256 MB + 500k cmds/mo. Vector: 10k queries/mo. QStash: 500 msgs/day.
Free
Pay-as-you-go
Redis: $0.2 per 100k cmds. Vector: $0.4/M queries. QStash: $1 per 100k.
$0 base (usage-based)
Fixed Plans
From $10/mo. 250MB-500GB Redis. $5/read region. 50GB bandwidth included.
$10/mo
Prod Pack
+$200/mo per DB. SLA + RBAC + encryption + SOC-2 + Prometheus + Datadog.
$200/mo
Enterprise
Custom. 100k+ cmd/sec, unlimited bandwidth, HIPAA.
Custom
Upstash website

Free-tier quotas head-to-head

Comparing free on Mailgun vs free on Upstash.

MetricMailgunUpstash
No overlapping quota metrics for these tiers.

Features

Mailgun · 14 features

  • Batch SendingSend up to 1,000 recipients per API call via recipient variables.
  • Dedicated IPsIP pools with auto warmup. Scale+ tier.
  • Deliverability SuiteInbox placement testing, DMARC reporting, seed lists.
  • Email LogsSearchable log of all send attempts + events.
  • Email TemplatesTemplate builder + variables + versioning.
  • Email ValidationReal-time email verification (syntax, MX, role accounts, disposable).
  • EU RegionData stored in EU for GDPR-sensitive customers.
  • Inbound RoutingRoute incoming emails to URLs/SMTP. Attachment forwarding.
  • Mailing ListsUnlimited mailing lists with bulk subscribe/unsubscribe.
  • Open/Click TrackingHTML + text tracking with configurable tracking domain.
  • SAML SSOScale+ tier.
  • Send APIREST/SMTP send with MIME + tracking.
  • TagsTag messages to slice stats.
  • Webhook Eventsdelivered, opened, clicked, unsubscribed, complained, permanent_fail, temporary_

Upstash · 12 features

  • Cron (via QStash)Scheduled HTTP callbacks on any interval.
  • Edge-ReadyNative for CF Workers, Vercel Edge, Deno, Bun.
  • Global DatabaseMulti-region Redis reads.
  • HTTP REST APIsEvery product has REST — works from edge runtimes.
  • QStashHTTP-based message queue + cron scheduler for webhooks.
  • QStash WebhooksOutgoing webhook delivery with retries + DLQ.
  • Read RegionsAdd read replicas in any region ($5/mo each).
  • @upstash/ratelimitRedis-backed rate limiter lib.
  • Upstash RedisServerless Redis with HTTP REST + RESP TCP.
  • Upstash SearchFull-text + semantic search engine.
  • Upstash VectorServerless vector DB with REST API. HNSW indexing.
  • Upstash WorkflowDurable workflow runtime built on QStash.

Developer interfaces

KindMailgunUpstash
SDKmailgun.js (Node), mailgun-php, mailgun-python, mailgun-rubyupstash-redis / vector (Python), @upstash/redis / vector / qstash
RESTMailgun REST APIQStash REST API, Upstash Redis REST API, Upstash Vector REST
OTHERInbound Routing, SMTP Relay, WebhooksRESP (TCP)
Staxly is an independent catalog of developer platforms. Outbound links to Mailgun and Upstash are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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