Email marketing tools that charge by emails sent rather than by subscribers

Here are good options that price mainly by emails sent, rather than charging more just because your subscriber list is large:

Quick picks: Try Brevo or Mailjet for a straightforward marketing interface; Mailchimp Pay As You Go or VerticalResponse for occasional campaigns; and MailBluster + SMTP or SES if low sending cost matters more than simplicity. Check the final price against your annual sends, since monthly plans may be poor value if you only email a few times a year.

Several email platforms bill by volume sent instead of list size. The main options, roughly from most marketing-friendly to most developer-oriented:

• Brevo is the best-known option for marketing email. It charges based on emails sent, not the number of stored contacts. Its free tier is generous, with Free (300 emails/day), and paid plans start with Starter $9/mo or $8.08 yearly (from 5,000 emails). The trade-off is that Starter has no marketing automation, so you need a higher tier for automations.
• Mailjet is another option for marketing and transactional sends. Its price is based on emails sent. It does not charge by contacts. Its marketing features include A/B testing, segmentation, and automation.
• Elastic Email is also listed as per-email pricing, meaning you pay for each email sent regardless of list size.
• Sequenzy prices the marketing platform per email sent (not per subscriber), and it is aimed at SaaS teams that want lifecycle automation.
• BigMailer is built for agencies. It charges per email sent across all managed brands, so you pay for volume instead of per account or per subscriber list.
• Amazon SES, SendGrid, Postmark, and Mailgun are sending infrastructure rather than full marketing suites. They suit developers and transactional mail. Amazon SES charges $0.10 per 1,000 emails. Note that Amazon SES now places every new account on an Essentials pricing plan at $0.16 per 1,000 emails as of July 2026, and some older comparisons still quote $0.10. SendGrid's Essentials at $19.95/mo covers up to 100,000 emails. Postmark is pricier, with $15 for 10,000 emails per month.

Trade-offs to weigh

• Per-send pricing favors large, quiet lists. If you have 50,000 contacts but only email them twice a month, this model saves money. If you send daily, it gets expensive fast.
• Per-subscriber tools such as Mailchimp count unsubscribed contacts, which is why the per-send model can look cheaper for large lists.
• Check the fine print on volume-based plans. Some sources note that the listed price is rarely the full cost: dedicated IPs, overages, support tiers, and missing dashboard features add up.

If you tell me your list size, monthly send volume, and whether you need automations or just broadcasts, I can narrow this to one or two tools.

If you are looking for email marketing tools that charge based on the number of emails sent rather than the number of subscribers in your list, you have several excellent options. This model is generally more cost-effective for businesses with large, infrequent lists or those that want to store unlimited contacts without being penalized.

Top Recommendations

• Brevo (formerly Sendinblue): Widely considered the most prominent platform using this model. It allows you to store unlimited contacts for free, and you only pay based on the monthly volume of emails you send. It is highly recommended for businesses that are scaling or have a large, inactive contact list that would be too expensive to maintain on subscriber-based platforms like Mailchimp.
• Infrastructure/API-based Services: These providers are built specifically for volume-based pricing and are often used by developers or businesses with high-frequency/transactional needs:
  • Amazon SES: The "gold standard" for the lowest raw cost. It is incredibly inexpensive but provides minimal "out-of-the-box" marketing features (like drag-and-drop builders or advanced reporting), meaning your team will need to build or manage those aspects.
  • Postmark: Known for excellent deliverability and reliability. It is a top choice if your primary focus is on critical transactional emails (like password resets or receipts), though it can handle marketing needs as well.
  • Elastic Email & Mailgun: Other popular infrastructure providers that offer highly competitive, pay-per-send pricing models.

"Pay-As-You-Go" Alternatives

Some traditional email marketing platforms offer "Pay-As-You-Go" or credit-based plans, which function similarly to a prepaid model. This is ideal if you only send emails occasionally (e.g., once a month or for seasonal campaigns):

• Mailchimp: Offers a "Pay As You Go" plan where you purchase email credits that do not expire monthly, allowing you to send whenever you want without a recurring subscription.
• Zoho Campaigns: Also provides a pay-as-you-go option, which is helpful for those who want to avoid monthly or annual commitments.

Summary Comparison

Recommendation: If you want a full-featured marketing platform (drag-and-drop builder, automation, CRM) that doesn't penalize you for list size, Brevo is typically the best starting point. If your primary need is high-volume sending with minimal marketing "fluff," look into infrastructure providers like Amazon SES or Postmark.

If you want your bill to track how many emails you send, rather than mainly the size of your subscriber list, these are worth considering:

• Brevo — A common choice for newsletters and marketing automation with plans built around monthly email volume. Check the current plan details for any contact or feature limits before signing up.
• Twilio SendGrid Marketing Campaigns — Pricing considers both stored contacts and emails sent, with monthly send tiers and per-email overage charges. It isn’t purely send-based, but the send volume is a direct pricing factor. ²
• Twilio SendGrid Email API — Primarily priced around monthly sending volume, though it’s more developer-oriented than a typical newsletter platform. ⁶
• MailerSend — Email-volume plans with a monthly quota and per-1,000-email charges for overages. It’s geared more toward transactional and business email, so check whether its marketing features fit your needs. ⁵

Quick pick: For marketing campaigns, compare Brevo and SendGrid Marketing Campaigns. For transactional or app-generated email, look at SendGrid Email API or MailerSend.

One caveat: “volume-based” doesn’t always mean “send-only”—some services also charge for stored contacts, features, or overages. MailerLite, for example, bases billing on active subscribers, even though its plans also include monthly sending limits. ¹