Unlimited Subscribers
List growth should not make your Mailrith bill harder to predict. Your Mailrith plan price stays predictable as your subscriber list grows.
- Keep adding subscribers without moving to a higher Mailrith plan.
- Use tags, custom fields, and segments to organize a larger list.
- Pay your email delivery service separately, so your Mailrith plan and sending costs stay separate.

Practical Use
What This Feature Helps You Do
See the everyday task this feature supports and the small decisions it helps you avoid handling by hand.
Predictable Mailrith Cost
Plan around one Mailrith price instead of worrying that each growth campaign will change the app bill.
Cleaner List Management
Manage a larger list more easily when subscribers, tags, fields, imports, exports, and statuses are in one place.
Better Growth Experiments
Test lead magnets, waitlists, and newsletters without making subscriber growth the expensive part.
When To Use This Feature
- You are growing a newsletter, waitlist, product list, or customer list and want a predictable Mailrith price.
- You want to keep every subscriber in one place instead of splitting lists to stay under billing limits.
- You are comfortable paying a separate email delivery service for the emails you send.
When This May Not Be The First Thing To Set Up
- You only need to send a few manual emails and do not need subscriber management yet.
- You want one company to combine email marketing, sending, delivery support, and billing.
- Your list is not permission-based, or you cannot explain how subscribers joined it.
Setup Steps
Simple Setup Steps
Follow these steps before you add more complex setup or automation.
- 1
Create the workspace that will own the subscriber list.
- 2
Add the fields and tags you need before you import a large CSV.
- 3
Import or collect subscribers only from permission-based sources.
- 4
Build your first segment for active subscribers before you send to the full list.
- 5
Review bounces, complaints, unsubscribes, and engagement after each send.
Avoidable Problems
Common Mistakes To Avoid
Watch for these mistakes because they can make basic email setup and sending harder to troubleshoot.
Importing Before Planning Tags
Before you import a large list, plan fields for source, interest, customer status, and consent notes.
Sending To Everyone Too Soon
Send to engaged subscribers first. A smaller clean send gives you clearer feedback than a rushed send to the full list.
Forgetting Delivery Costs
Mailrith handles the email marketing work. Your email delivery service can still charge for the emails it sends.
Works With Other Features
How This Connects With The Rest Of Mailrith
Email work often uses several Mailrith screens. Use this section to see where Unlimited Subscribers connects to related Mailrith features.
- Tags help show why a subscriber is on the list.
- Custom Fields store subscriber details you can use later.
- Segments help you send to the right subscribers instead of the full list.
- Broadcasts and sequences use the same subscriber records.
Keep Exploring
Continue from this feature overview to setup instructions, related features, and nearby workflows.
Setup Details
Subscribers Setup
Learn how subscriber records, statuses, imports, exports, and bulk actions work.
Related Feature
Tags
Label subscribers by interest, source, stage, product, behavior, or another simple yes-or-no marker.
Related Feature
Custom Fields
Store structured subscriber details such as company, plan, date, location, score, or any other detail you want to reuse.
Related Feature
Segments
Build saved subscriber groups that update automatically based on status, tags, custom fields, forms, sequences, and activity.
Related Feature
Broadcasts
Send one-time newsletters, product updates, launch emails, announcements, and promotions to the subscribers you select.
Email Delivery Services
Related Email Delivery Services
Compare these services when you are deciding which one should send your emails.
Connect Your Delivery Service
Custom SMTP Email Marketing
Use Custom SMTP to connect an email delivery service to Mailrith, then use that connection for campaigns, newsletters, sequences, automations, forms, and reports.
Amazon SES And Mailrith
Amazon SES Email Marketing
Use Mailrith to manage subscribers, forms, broadcasts, sequences, automations, and reports while Amazon SES handles email delivery.
Postmark And Mailrith
Postmark Email Marketing
Use Mailrith for subscribers, forms, broadcasts, sequences, automations, and reports while Postmark handles email delivery.