Comparison

HonkIO vs Postmark for email in Canada

Postmark sells monthly plans in US dollars and hosts its data near Chicago and on AWS. HonkIO's email API stores your mail in Canada, checks CASL consent on commercial email and charges per recipient in Canadian dollars.

In short

  • Postmark's plans start at $15 USD a month for 10,000 emails. HonkIO charges $0.0025 CAD per recipient ($2.50 per 1,000), in CAD, with no monthly fee.
  • Postmark hosts its data at a data centre outside Chicago and on AWS. HonkIO stores your email in Canada (Montréal).
  • Postmark includes inbound email on its Pro and Platform plans. HonkIO receives email on every account, priced per message.
  • Postmark keeps broadcast email in its own stream, with an unsubscribe link added. HonkIO adds the unsubscribe to commercial email and checks CASL consent first.

Side by side

HonkIO and Postmark, from Postmark's public pages as of October 2026.

ComparedHonkIOPostmark
How you pay
Basic $15, Pro $16.50 and Platform $18 a month, each from 10,000 emails; overage $1.80, $1.30 or $1.20 per 1,000.
Per recipient, prepaidMonthly plan
Entry price
$0.0025 CAD per recipient$15 USD a month
Currency
CADUSD
Free use
Postmark's Developer plan does not expire and has no overages.
Test mode100 emails a month
Receiving email
Not on Basic or the free plan. Postmark posts parsed JSON to your webhook, with a SpamAssassin score.
$0.0025 CAD per messagePro and Platform
Where data is stored
Postmark says it has no plans for EU servers, and its privacy page makes no statement about Canada.
CanadaChicago area and AWS
Email history
On Pro and up, Postmark can keep it up to 365 days, an add-on from $5 a month.
Bodies kept 90 days45 days
Unsubscribe on commercial email
Postmark adds an unsubscribe link and one-click headers to broadcast messages and suppresses people who unsubscribe.
Added automaticallyOn broadcasts
CASL consent check
YesNot described
Dedicated IP
For 300,000 emails a month or more, on Pro and up.
Shared sendingFrom $50 a month

The Postmark column comes from Postmark's public pages, checked in October 2026; each one is listed under Sources. Prices are as listed, before taxes. HonkIO prices are in Canadian dollars.

What it costs

List prices, as each provider publishes them.

Postmark sells monthly plans in US dollars: Basic at $15, Pro at $16.50 and Platform at $18 a month, each starting at 10,000 emails, with overage at $1.80, $1.30 and $1.20 per 1,000. The Developer plan is free for 100 emails a month.

Postmark Basic's 10,000 emails for $15 USD work out to $1.50 USD per 1,000, against $2.50 CAD per 1,000 at HonkIO. Convert to Canadian dollars before you compare, and count the monthly fee in a quiet month.

HonkIO charges $0.0025 CAD per accepted recipient ($2.50 per 1,000) from a prepaid balance shared with SMS, with no monthly fee, before taxes. The first 2 MB of attachments per recipient are included, and each started MB above that is charged. Received email costs $0.0025 CAD per message for its first MB. Test emails are free.

See HonkIO pricing

Where your data is stored

Where data is kept at rest, and what is processed elsewhere.

HonkIO stores sent and received email, attachments, consent records and logs in Canada, in AWS ca-central-1 (Montréal), where email is also sent and received. API requests are processed on US-hosted infrastructure before they are stored, as the privacy policy says, and an email on its way to a recipient goes wherever their mail server is. Message bodies are deleted after 90 days, and received attachments and raw messages after 40 days.

Postmark says its primary data and servers are hosted at Deft's data centre outside Chicago and on AWS, and that it has no plans for EU servers. Its EU privacy page makes no statement about Canada, PIPEDA or Quebec.

Its data processing agreement, with standard contractual clauses, is part of its terms of service; a signed copy is no longer needed.

Where HonkIO stores and processes data

When Postmark is the better choice

Where we would point you to Postmark instead.

  • You send a steady volume and a flat monthly plan in USD works out cheaper.
  • You want transactional and broadcast email kept in separate streams.
  • You want message history kept for up to a year, or a dedicated IP at high volume.
  • You want a free plan that delivers real email: Postmark's sends 100 a month.

When HonkIO fits

HonkIO is built for messaging people in Canada.

  • Your recipients are in Canada and you want consent checked before each commercial email.
  • You want sent and received email stored in Canada, with the processing outside Canada disclosed.
  • You send a modest or uneven volume and would rather pay per recipient, in Canadian dollars, than for a monthly plan.
  • You also text people in Canada: SMS and email share one balance, one set of API keys and one webhook feed.
  • You want to start in test mode, with simulated bounces and complaints, before you set up a domain.

Moving from Postmark

There is no Postmark-specific guide yet. POST /v1/emails takes the fields most email APIs use (from, to, cc, bcc, reply_to, subject, html, text and attachments), so a Postmark integration mostly changes its request shape, base URL and key. The email docs cover sending, templates, domains, webhooks and receiving.

Read the email docs

Questions

Is HonkIO cheaper than Postmark?
At low or uneven volume it can be, since there is no monthly fee. As of October 2026, Postmark Basic is $15 USD a month for 10,000 emails; HonkIO charges $0.0025 CAD per recipient, in Canadian dollars.
Does Postmark store data in Canada?
Postmark says its data is hosted outside Chicago and on AWS, and makes no statement about Canada, as of October 2026. HonkIO stores sent and received email in Canada (Montréal); API requests are processed on US-hosted infrastructure before they are stored.
Which Postmark plans receive email?
Pro and Platform, as of October 2026; Basic and the free plan do not. HonkIO receives on every account, at $0.0025 CAD per message for its first MB.

Sources

What this page says about other providers comes from their public pages, checked in October 2026. If something has changed, tell us at support@honkio.ca and we will correct it.

Related

  • Email API

    Send transactional email from your own domain and receive replies over the API, with CASL checks and data stored in Canada.

  • HonkIO vs Resend

    HonkIO and Resend compared for email to people in Canada: pricing, receiving email, where data is stored and CASL unsubscribes.

  • HonkIO vs SendGrid

    HonkIO and Twilio SendGrid compared for email to people in Canada: plans and pricing, receiving email, data residency and unsubscribes.

  • HonkIO vs Mailgun

    HonkIO and Mailgun compared for email to people in Canada: USD plans and CAD pricing, inbound routes, US and EU regions, and unsubscribes.

  • HonkIO vs US email providers

    An email API for Canadian senders: sent and received email stored in Canada, CASL unsubscribe built in, prices in CAD.

  • CASL for developers

    What Canada’s anti-spam law asks of the code that sends texts and email: consent, identification, unsubscribes and records.

Try it in test mode first

Create a free account

Test keys work right after sign-up, with no card and no charges.