Best for
Best for product and engineering teams whose transactional email has to arrive, and who want promotional sending kept on separate infrastructure.
- Freelancers
- Small and mid-sized
- Enterprise
Email Marketing Comparison
Postmark vs. Salesforce Marketing Cloud
At a glance
At a glance
Best for
Best for enterprises already running Salesforce that want marketing working from the same customer profile as sales and service.
- Enterprise
Cataleo does not name a winner. Both statements come from the vendors themselves.
Full Comparison
| Criterion | Postmark | Salesforce Marketing Cloud |
|---|---|---|
| Starting price | lower value Free tier; Basic from $15 / month All three paid plans start at 10,000 emails per month and differ mainly by overage rate: Basic $15 at $1.80 per 1,000 extra emails, Pro $16.50 at $1.30, Platform $18 at $1.20. | From $1500 / org / month Marketing Cloud Next Growth is $1,500 per organisation per month, billed annually; Advanced is $3,250. Personalization, Marketing Intelligence and Loyalty Management are separately priced add-ons. |
| Free trial | Free tier: 100 emails per month, no overages permitted, never expires | Not stated |
| API | Yes, REST API and an SMTP service, with official libraries for TypeScript, Node.js, Python, Ruby, PHP, .NET and Java | Yes, prebuilt connectors and APIs across the Salesforce platform |
| Hosting | Cloud (SaaS) | Cloud (SaaS) |
| Campaign types | Transactional and broadcast email on separate Message Streams, plus inbound email processing that delivers received mail to your application | Email, SMS and web messaging, with two-way SMS and WhatsApp conversations on the Advanced edition, plus forms and landing pages from Growth up |
| Automation and journeys | No journey or automation builder. Sends are triggered by your own application over the API or SMTP, and delivery events are pushed back out through webhooks. | Yes, multi-channel journeys from the Growth edition, path experimentation on Advanced, and Agentforce agents that assemble and optimise campaigns against a stated goal |
| Segmentation and personalisation | No stored audiences or segment builder. Recipients and their personalisation values are supplied per request, while Postmark maintains bounce state and suppression lists. | Yes, segments generated in real time by Agentforce agents over unified profiles from Data 360 |
| Templates and editor | Reusable email templates with variable substitution, managed in the dashboard or over the Templates API; there is no drag-and-drop campaign designer | Campaign and content creation assisted by Agentforce agents, with forms and landing pages included from the Growth edition |
| Deliverability and testing | Message Streams keep promotional sending on infrastructure separate from transactional mail. Message data is retained for 45 days, extendable to 365 days on Pro and Platform from $5 per month. Dedicated IPs start at $50 per month per IP and DMARC monitoring at $14 per month per domain. | Deliverability is managed and tracked inside the platform, with engagement scoring, subscriber preference management and audience refinement as the levers; testing runs to A/B/n tests, and send time and frequency are optimised per subscriber |
| Ecommerce and CRM data | No built-in ecommerce or CRM data sync. Contact data stays in your own application, which supplies it with each send. | Yes, Data 360 unifies customer, campaign and revenue signals into one profile, with prebuilt connectors to Salesforce CRM and outside systems |
| Integrations and API | Yes, REST API with separate server and account tokens over TLS, plus an SMTP service with IP allowlisting. Endpoints cover email, batch sending, templates, bounces, inbound, message streams and suppressions. Official libraries for TypeScript, Node.js, Python, Ruby, Rails, PHP, .NET and Java, plus a WordPress plugin; community libraries add Go, Elixir, Laravel and Scala. | Yes, prebuilt connectors and APIs across the Salesforce ecosystem, including Service Cloud and Data 360 |
| AI features | No | stated Yes |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Email helpdesk | Not stated |
| Onboarding | Documentation and knowledge base | Documentation and knowledge base |
| Company size | more entries Freelancers, Small and mid-sized, Enterprise | Enterprise |
Add a tool
Adds a column to the table, from the tools in this category.
Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.
The short version
Key Differences
- Starting price Postmark Free tier; Basic from $15 / month Salesforce Marketing Cloud From $1500 / org / month
- Company size Postmark Freelancers, Small and mid-sized, Enterprise Salesforce Marketing Cloud Enterprise
- AI features Postmark No Salesforce Marketing Cloud Yes
- API Postmark Yes, REST API and an SMTP service, with official libraries for TypeScript, Node.js, Python, Ruby, PHP, .NET and Java Salesforce Marketing Cloud Yes, prebuilt connectors and APIs across the Salesforce platform
- Campaign types Postmark Transactional and broadcast email on separate Message Streams, plus inbound email processing that delivers received mail to your application Salesforce Marketing Cloud Email, SMS and web messaging, with two-way SMS and WhatsApp conversations on the Advanced edition, plus forms and landing pages from Growth up
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
Postmark
Strengths
- Message Streams keep promotional sending on infrastructure separate from transactional mail
- Standing free tier of 100 emails a month that never expires
- Official client libraries for eight languages plus a WordPress plugin
- Inbound email processing on the Pro and Platform plans
- Message data retention extendable from 45 days to 365 days on Pro and Platform
Limitations
- No automation, journey builder or stored audiences
- Inbound email is not included on the Free and Basic plans
- Dedicated IPs, extended retention and DMARC monitoring are priced as add-ons
- The free tier permits no overage, so sending stops at 100 emails
- All three paid plans start at the same 10,000 emails, so the choice is really about overage rate
Salesforce Marketing Cloud
Strengths
- List prices are published, which is unusual for an enterprise marketing suite
- Agentforce agents build segments, create campaigns and optimise performance inside the platform
- Data 360 unifies customer, campaign and revenue data with the rest of Salesforce
- Two-way SMS and WhatsApp conversations on the Advanced edition
Limitations
- Licensed per organisation per month and billed annually, so the entry cost does not scale down with a small list
- Personalization, Marketing Intelligence and Loyalty Management are add-ons starting at $8,000 per organisation per month
- Several distinct products share the Marketing Cloud name, so the edition matters more than the brand
- Deliverability tooling is not set out on the public pricing or product pages
Plans
Pricing
Postmark
- Free $0 100 emails per month with no overages permitted, and 45 days of data retention. Never expires.
- Basic $15 Per month from 10,000 emails, overage $1.80 per 1,000. 45 days of data retention, no inbound email.
- Pro $16.50 Per month from 10,000 emails, overage $1.30 per 1,000. Adds inbound email and data retention customisable to 365 days.
- Platform $18 Per month from 10,000 emails, overage $1.20 per 1,000. Adds unlimited custom domains and message streams.
Salesforce Marketing Cloud
- Marketing Cloud Next Growth $1,500 Per organisation per month, billed annually. Agentforce campaign creation, multi-channel journeys, forms and landing pages.
- Marketing Cloud Next Advanced $3,250 Per organisation per month, billed annually. Adds path experimentation and two-way conversations for SMS and WhatsApp.
- Salesforce Personalization $8,000 Add-on, per organisation per month billed annually. Web, mobile app and email personalisation, Agentforce decisioning, product and content recommendations.
- Marketing Intelligence $10,000 Add-on, per organisation per month billed annually. Agentforce paid media optimisation, AI campaign summaries, data enrichment and visualisations.
- Loyalty Management $20,000 Add-on, per organisation per month billed annually. Agentforce loyalty promotion creation, CRM loyalty analytics and dynamic promotions management.
What users say
Review Scores · opens after launch
Postmark
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Salesforce Marketing Cloud
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Where this comes from
Where this comes from
Postmark https://postmarkapp.com · checked against the official source on 2026-09-09
Salesforce Marketing Cloud https://www.salesforce.com/marketing/ · checked against the official source on 2026-09-07
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.