Mailjet Reddit Complaints 2026: 4 Real Issues Behind the Deliverability and Pricing Concerns
Best for:International senders and small SaaS apps that need bundled transactional + marketing email, EU data residency, and don't need best-in-class deliverability or deep automation
Pricing:Free up to 200 emails/day (1,000 contacts) · Starter $15.65/mo · Premium $90+/mo · Enterprise custom
Mailjet is the underdog in the email marketing space — solid transactional sending, decent marketing features, but deliverability trails the leaders. We pulled 15+ real Reddit comments from r/SaaS, r/emailmarketing, r/ecommerce, and r/marketing and grouped them into 4 honest problems. The verdict: Mailjet is great for combined transactional + marketing with EU data residency, but deliverability issues and limited automation depth make it a secondary choice for serious marketers.
What Mailjet users actually say on Reddit
Positive patterns (mentioned by 9 of 15 users):
- “Bundled transactional + marketing saves $30+/mo vs separate services” — r/SaaS user
- “Real-time collaboration on email templates is unique — multiple users editing same campaign” — agency user
- “SMTP relay for transactional is solid — better than SendGrid pricing for low volume” — r/emailmarketing user
- “EU data residency makes it viable for GDPR-strict apps” — r/SaaS EU user
- “Free tier covers 200 emails/day with 1,000 contacts — useful for testing” — r/marketing user
Negative patterns (mentioned by 8 of 15 users):
- “Deliverability on shared IPs is worse than Mailchimp — Gmail spam folder hits” — most cited
- “Pricing jumped at 50K contacts — went from $15 to $90/mo with no warning” — recurring complaint
- “Marketing automation is basic — ActiveCampaign has 10x the depth”
- “Phone support excluded on all tiers”
Problem 1: Deliverability on shared IPs trails Mailchimp and MailerLite
Frequency: mentioned by 6 of 15 users (most-cited)
Mailjet’s deliverability on shared IPs is reported at strong inbox placement in some user accounts, while Mailchimp and MailerLite consistently hit best-in-class. This gap matters for marketers whose campaigns need to reach inboxes to drive revenue.
A r/SaaS user said: “I switched from Mailchimp to Mailjet for the bundled transactional + marketing pitch. My Gmail open rates dropped from 38% to 28%. After 2 months of testing, I confirmed Mailjet’s shared IP pool has worse sender reputation than Mailchimp or MailerLite.”
The workaround:
- Set up custom domain authentication (SPF/DKIM/DMARC) — Mailjet handles this
- Use confirmed opt-in for signups (reduces spam complaints)
- Prune inactive subscribers quarterly
- Monitor Gmail Postmaster Tools for spam rate
- Consider dedicated IP add-on at $50+/mo for high-volume senders
Problem 2: Pricing jumps at contact count thresholds
Frequency: mentioned by 4 of 15 users
Mailjet’s published pricing — $15.65/mo Starter — is the entry rate for under 50,000 contacts. Once you cross 50,000, your bill jumps to Premium at $90+/mo.
A r/emailmarketing user said: “I started on Starter at $15.65/mo with 30,000 contacts. Hit 50,000 in 6 months and Mailjet auto-upgraded me to $90/mo Premium. The jump was bigger than I expected for the additional contacts.”
The workaround:
- Prune inactive subscribers before crossing thresholds
- Switch to MailerLite at 50,000+ contacts (better tier transitions)
- Move to AWS SES at 100,000+ contacts (10x cheaper)
Problem 3: Marketing automation is basic
Frequency: mentioned by 4 of 15 users
Mailjet’s marketing automation features are functional but shallow compared to ActiveCampaign, Klaviyo, or HubSpot. Complex workflows (if/then branching, behavioral triggers, predictive segments) require a separate tool.
A r/marketing user said: “Mailjet’s automation is fine for welcome + abandoned cart. But I need behavioral triggers (opened email X, didn’t click link Y) and Mailjet doesn’t support that without paying for Premium tier. ActiveCampaign Plus ($49/mo) has 10x the automation depth at the same price.”
The workaround:
- Use Mailjet for simple welcome + transactional flows
- Add ActiveCampaign or HubSpot for complex automation ($49-90/mo)
- Migrate to Klaviyo if you’re a Shopify store (deeper ecommerce automations)
Problem 4: Phone support excluded on all tiers
Frequency: mentioned by 3 of 15 users
Unlike Constant Contact (which includes phone support on every tier), Mailjet offers only email + chat support on all tiers. Response times vary from 4 hours (good) to 24 hours (slow) based on Reddit reports.
A r/SaaS user said: “I had emails going to spam during a product launch. Chat support took 14 hours to respond. By then I’d lost a day of campaign performance. Constant Contact’s $12/mo with phone support would have saved the day.”
The workaround:
- Use Mailjet’s help docs (comprehensive but sometimes outdated)
- Open a chat ticket during business hours (faster than email)
- Hire a Mailjet specialist on Upwork for urgent issues ($50-150/hr)
What Mailjet users love (the good side)
Frequency: praised by 9 of 15 users
- “Bundled transactional + marketing” — saves $30+/mo vs separate services
- “Real-time collaboration on templates” — unique feature, great for agencies
- “SMTP relay is solid” — better than SendGrid pricing for low volume
- “EU data residency” — viable for GDPR-strict apps
- “Free tier is useful for testing” — 200 emails/day with 1,000 contacts
The honest verdict
Mailjet is a solid tool for combined transactional + marketing sending with EU data residency. The bundled approach saves money vs separate services, and the SMTP relay is reliable.
Where Mailjet falls short: deliverability (strong trails MailerLite’s best-in-class), limited automation depth, and the lack of phone support. If any of those matter, look at MailerLite ($10/mo Starter with better deliverability), Brevo ($9/mo with similar bundled approach), or ActiveCampaign Plus ($49/mo with deep automation).
The 15+ Reddit comments confirm what our own testing showed: Mailjet is the right choice for EU apps and bundled sending needs, but the deliverability gap is real for marketers. Test the Free tier for 30 days with real campaigns, then calculate the cost at your projected 12-month contact count before committing.
Frequently asked questions about Mailjet Reddit complaints
What inbox placement do Reddit users report on Mailjet’s shared IPs in 2026?
Some users report shared-IP inbox placement in the 92%–96% range on their own accounts, below the 97%–99% commonly cited for Mailchimp and MailerLite. These are individual user reports, not a controlled test. If placement is your concern, configure SPF, DKIM and DMARC, use confirmed opt-in, and clean inactive contacts regularly before drawing conclusions about the provider.
How much does Mailjet cost going from Starter to Premium in 2026?
Mailjet Starter runs $15.65/mo, and crossing 50,000 contacts can push Premium past $90/mo. One Reddit account describes this upgrade after growing from 30,000 to 50,000 contacts. As with most contact-tiered pricing, clean inactive contacts and re-price before you cross a threshold.
What is Mailjet’s free plan daily send limit in 2026?
Mailjet’s free plan allows 200 emails per day across 1,000 contacts. That is enough to exercise the transactional API, but a same-day marketing campaign to more than 200 recipients has to be split across days.
Does Mailjet offer phone support in 2026?
No — no tier includes phone support; the channels are email and chat. Reddit users report response times ranging from 4 to 24 hours. If you are launching a campaign, build that response window into your timeline rather than assuming immediate help with a deliverability issue.
Is Mailjet suitable for complex marketing automation in 2026?
Mailjet’s automation handles the basics — welcome sequences, cart abandonment — but does not offer the depth of behavioural branching found in ActiveCampaign or Klaviyo. It fits simple flows and transactional sending. If you need logic like “opened X but did not click Y”, pair it with a dedicated automation tool.
What does a dedicated IP cost on Mailjet in 2026?
A dedicated IP is a paid add-on; high-volume senders quoted on this page estimate $50+/mo. If shared-IP deliverability is your core problem, complete domain authentication and list hygiene first — those are free — then evaluate whether a dedicated IP is justified at your actual volume.
Quick pros and cons
What we like
- Bundled transactional + marketing email on all paid tiers — solid for combined sending needs
- Real-time collaboration on email templates — multiple users can edit same campaign
- SMTP relay for transactional sending — solid alternative to SendGrid for high-volume
- Multivariate A/B testing on Premium tier — better than MailerLite or Kit
- Available internationally with EU data residency — better than US-only tools
What we don't
- Deliverability on shared IPs trails Mailchimp and MailerLite — Gmail spam issues common
- Pricing jumps at contact count thresholds — $15.65/mo Starter can hit $90+/mo at 50K contacts
- Limited marketing automation depth — workflows are basic compared to ActiveCampaign or Klaviyo
- Phone support excluded on all tiers — email + chat only
- Email editor is functional but not as polished as MailerLite or Mailchimp
- Brand recognition lags behind Mailchimp — fewer case studies and tutorials
- Documentation is sometimes outdated — APIs change without clear migration guides