# Thunk Mail

All three paid plans include campaigns, signup pages, and the full email composer. Starter, Base, and Pro differ in contact limits, sending windows, branding, and how many emails each autoresponder can send.

Canonical page: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/

Documentation read on 2026-11-12. This is our reading of vendor documentation. We have not tested the product.

Thunk Mail is for writing email campaigns, growing a contact list, and following up with timed autoresponders. Every paid plan includes the full composer. Contact limits, sending allowances, emails per autoresponder, and branding differ by plan.

Source: https://www.thunkmail.com/#pricing, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

New accounts can import contacts, build campaigns, set up forms, and send tests before paying. Sending campaigns to a list requires a paid plan. Only some existing accounts still have the old Free plan.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

## Editorial guidance

Thunk Mail suits small businesses, solo entrepreneurs, civic groups, clubs, and other small groups.

This advice is based on the plans we cover. It is not a ranking.

### Who it may suit

Thunk Mail fits small businesses, solo entrepreneurs, clubs, civic groups, and community organizations that send newsletters, announcements, customer updates, or member messages. Pick a plan by audience size, how often you send, and how long your follow-up sequence is.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/how-auto-responders-work, checked 2026-11-12.

### What to check

Check the rolling sending window, the contact tier, and how many emails each autoresponder allows. Sending from your own domain requires talking to sales. Starter's support level is unclear. Autoresponders are list-based sequences, and we found no evidence of more advanced automation.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

Source: https://www.thunkmail.com/#pricing, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/how-auto-responders-work, checked 2026-11-12.

## Features

### A block-based email composer

Build emails from blocks such as text, headings, images, buttons, banners, and product or article cards. A video block shows a linked thumbnail. Starter, Base, and Pro all include the composer. Thunk Mail's documentation says you can't import custom HTML.

Source: https://www.thunkmail.com/help-center/build-your-email-with-modules, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

### Immediate and scheduled campaigns

Send a campaign now or schedule it in the account's time zone. To change a scheduled time, cancel the send to return it to a draft, then schedule it again. Check the account time zone before planning a launch.

Source: https://www.thunkmail.com/help-center/schedule-a-campaign, checked 2026-11-12.

### CSV import, field mapping, and export

Import a CSV, check how its columns map to fields, and bring in first name, last name, and custom fields with each email address. Large imports run in the background. Import History shows which addresses were skipped and why. You can also export the full contact list as a CSV.

Source: https://www.thunkmail.com/help-center/import-contacts-from-a-csv, checked 2026-11-12.

Source: https://www.thunkmail.com/#pricing, checked 2026-11-12.

### Hosted signup pages with QR codes

Share a hosted signup page by link or QR code. Choose one or more lists to add people to, and optionally ask for first and last names. This is a hosted signup page, not a website or landing-page builder.

Source: https://www.thunkmail.com/help-center/collect-signups-with-a-form, checked 2026-11-12.

### Double opt-in and confirmation controls

People who sign up through a form stay pending until they confirm by email. You can customize the confirmation subject, the welcome text, and where people land after signing up and confirming. Suppressed addresses stay suppressed even if they sign up again.

Source: https://www.thunkmail.com/help-center/collect-signups-with-a-form, checked 2026-11-12.

### List-triggered autoresponders

An autoresponder watches one list and sends each new contact a timed sequence. Starter allows one email per autoresponder, and Base and Pro allow more. Each wait counts from the previous email, and autoresponder emails use the normal sending allowance.

Source: https://www.thunkmail.com/help-center/how-auto-responders-work, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/auto-responder-limits-on-your-plan, checked 2026-11-12.

### Campaign reports

Campaign reports show sent, delivered, opens, clicks, bounces, complaints, and unsubscribes. Test sends are reported separately. "Delivered" means the receiving mail server accepted the email, not that it reached the inbox. Privacy tools and blocked images can make open counts inaccurate.

Source: https://www.thunkmail.com/help-center/reading-your-campaign-stats, checked 2026-11-12.

### Bounce, unsubscribe, and complaint handling

Thunk Mail says it automatically excludes bounced contacts and stops sending after an unsubscribe or complaint. CSV imports also screen addresses and report what was skipped. These are Thunk Mail's stated rules. We have not measured deliverability.

Source: https://www.thunkmail.com/help-center/bounces-unsubscribes-and-complaints, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/import-contacts-from-a-csv, checked 2026-11-12.

## Limits to know

### The rolling window affects campaign timing

Starter allows 5,000 sends and 500 different recipients in any 30-day period. It also caps sends at 1,000 a day and 500 an hour. Base allows 20,000 sends in the same rolling window. Room comes back as old sends drop out of the window, and there is no monthly reset. Bounced, unsubscribed, and import-blocked addresses don't count toward the contact limit.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

### Your own sending domain needs a sales conversation

Emails are sent from send.thunkmail.com, and replies go to a verified reply-to address you set. To send from your own domain or store more than 7,000 contacts, contact sales. Removing the Thunk Mail footer badge on Base or Pro is a separate feature.

Source: https://www.thunkmail.com/help-center/verify-your-from-email-address, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

### Check what support you get

Starter's support level is unclear. The comparison table lists docs and community help, but another section of the same page promises priority chat and email on every paid plan. Base clearly lists priority human chat and email. Pro's account manager is limited to high-volume senders, with no threshold given. Ask Thunk Mail what support you'll get.

Source: https://www.thunkmail.com/#pricing, checked 2026-11-12.

### Test list migration and sequence enrollment

Imports can block role addresses such as info@ or admin@, along with suppressed or disposable addresses. Read the skip report before assuming every address from your old platform came across. Deleting and re-importing a contact does not restart an autoresponder they already finished.

Source: https://www.thunkmail.com/help-center/why-was-my-contact-blocked, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/how-auto-responders-work, checked 2026-11-12.

## Getting started

### Prepare the list

Import a CSV of people who opted in, check the field mappings, and read the skipped-address report. Make sure the list contains the people you meant to email.

Source: https://www.thunkmail.com/help-center/import-contacts-from-a-csv, checked 2026-11-12.

### Test the complete signup and email flow

Build the campaign and send a test to yourself. If you use a signup page, test it with a new address, checking confirmation, list assignment, and the welcome email.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/collect-signups-with-a-form, checked 2026-11-12.

### Send and review the results

Choose a plan, check the sender settings and time zone, then schedule or send. In the campaign report, read open trends together with delivery, clicks, and suppression events.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/schedule-a-campaign, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/reading-your-campaign-stats, checked 2026-11-12.

## Plans and pricing

### Starter

$7 USD / mo. USD, billed monthly. 500 stored contacts. Sending windows and limits are listed below.

Starter suits lists of up to 500 contacts when each autoresponder needs only one email. Plan campaigns around its unique-recipient, daily, and hourly limits.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

Annual billing: $6 USD per month equivalent. Calculated 12-month total: $72 USD. Check the amount at checkout.

- contacts: 500 stored contacts. Bounced, unsubscribed, and import-blocked addresses do not count toward the contact limit. Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-starter-contacts

- sends: 5,000 / rolling 30 days. Also limited to 500 different recipients per rolling 30 days, 1,000 sends a day, and 500 sends an hour. Campaigns and autoresponders share these limits. Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-starter-sends

- automation: 1 email / autoresponder. This counts emails in each autoresponder, not workflows. Autoresponder emails use the normal sending allowance. Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-starter-automation

- branding: Footer badge retained.  Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-starter-branding

### Base

$17 USD / mo. USD, billed monthly. 2,000 stored contacts. Sending windows and limits are listed below.

Base suits up to 2,000 contacts, multi-email follow-up, and removing the footer badge. Thunk Mail lists no daily, hourly, or unique-recipient caps for Base, but the rolling 30-day allowance still applies.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

Annual billing: $14 USD per month equivalent. Calculated 12-month total: $168 USD. Check the amount at checkout.

- contacts: 2,000 stored contacts. Bounced, unsubscribed, and import-blocked addresses do not count toward the contact limit. Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-base-contacts

- sends: 20,000 / rolling 30 days. Campaigns and autoresponders share the allowance. Thunk Mail lists no daily, hourly, or unique-recipient cap for Base. Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-base-sends

- automation: Unlimited emails / autoresponder. This counts emails in each autoresponder, not workflows. Autoresponder emails use the normal sending allowance. Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-base-automation

- branding: Removal included.  Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-base-branding

### Pro

$37 USD / mo. USD, billed monthly. 7,000 stored contacts. Sending windows and limits are listed below.

Pro suits up to 7,000 contacts when you send more often than Base allows. Unlimited sends do not raise the contact limit or add automation features.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

Annual billing: $29 USD per month equivalent. Calculated 12-month total: $348 USD. Check the amount at checkout.

- contacts: 7,000 stored contacts. Bounced, unsubscribed, and import-blocked addresses do not count toward the contact limit. Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-pro-contacts

- sends: Unlimited sends. Campaigns and autoresponders share the allowance. The 7,000-contact limit still applies. Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-pro-sends

- automation: Unlimited emails / autoresponder. This counts emails in each autoresponder, not workflows. Autoresponder emails use the normal sending allowance. Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-pro-automation

- branding: Removal included.  Evidence: https://feature-ledger.lehmanrylan790521.chatgpt.site/services/thunkmail/#thunkmail-pro-branding

## Common questions

### Does Thunk Mail have a free plan or free trial?

New accounts can no longer get the Free plan. You can set up an account and send test emails before paying, but sending campaigns to a list requires a subscription. Older Free accounts that qualify keep their plan until they leave it.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

### What is the difference between Starter, Base, and Pro?

Starter allows 500 contacts and one email per autoresponder, with extra daily and hourly sending caps. Base raises the limit to 2,000 contacts, allows multi-email autoresponders, and lets you remove the footer badge. Pro allows 7,000 contacts and has no sending limit. All three include the full composer.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

### Can I send from my own domain?

By default, emails come from send.thunkmail.com with a verified reply-to address. Contact sales to send from your own domain. Removing the footer logo on Base or Pro does not give you your own sending domain.

Source: https://www.thunkmail.com/help-center/verify-your-from-email-address, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

### Can I import my own HTML email template?

No. Thunk Mail's composer documentation says custom HTML import is not supported. Use the block composer, and check any specific design needs before moving an existing template library.

Source: https://www.thunkmail.com/help-center/build-your-email-with-modules, checked 2026-11-12.

### Does Starter allow only one autoresponder?

No. Starter limits each autoresponder to one email, not the account to one autoresponder. Base and Pro allow more emails per autoresponder. This doesn't mean branching or every kind of trigger is available.

Source: https://www.thunkmail.com/help-center/auto-responder-limits-on-your-plan, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/how-auto-responders-work, checked 2026-11-12.

### Can I export my list or change plans later?

Yes. You can export your contact list as a CSV. Upgrades take effect immediately, and you pay the prorated difference. If you cancel, your account and work are kept, but sending stops until you choose a plan again. Check billing details in Thunk Mail's account portal.

Source: https://www.thunkmail.com/#pricing, checked 2026-11-12.

Source: https://www.thunkmail.com/help-center/plans-and-send-limits, checked 2026-11-12.

## Comparisons

- Thunk Mail vs Mailchimp: https://feature-ledger.lehmanrylan790521.chatgpt.site/email-marketing/compare/mailchimp-vs-thunkmail/

- Thunk Mail vs Kit: https://feature-ledger.lehmanrylan790521.chatgpt.site/email-marketing/compare/kit-vs-thunkmail/

- Thunk Mail vs MailerLite: https://feature-ledger.lehmanrylan790521.chatgpt.site/email-marketing/compare/mailerlite-vs-thunkmail/

- Thunk Mail vs Brevo: https://feature-ledger.lehmanrylan790521.chatgpt.site/email-marketing/compare/brevo-vs-thunkmail/

- Thunk Mail vs Klaviyo: https://feature-ledger.lehmanrylan790521.chatgpt.site/email-marketing/compare/klaviyo-vs-thunkmail/

- Thunk Mail vs Constant Contact: https://feature-ledger.lehmanrylan790521.chatgpt.site/email-marketing/compare/constant-contact-vs-thunkmail/