Sender's Black Friday: the real 60% costs you two years upfront

Sender's pricing page has a line that made me stop: 30% off annual plans, "for all users, only on Black Friday." Only on Black Friday. So I checked the Internet Archive. On September 17 and October 13 the exact same price was on the page. No Black Friday in sight.

Sender is an email marketing platform from Vilnius, founded in 2012, in the same category as MailerLite and Mailchimp. Why it belongs in this series: Sender runs its own MCP server, so Claude, ChatGPT or Cursor can read your campaigns and automations and build drafts. More on that below.

What Sender is offering

As of November 10, 2026, prices for up to 500 subscribers, in US dollars:

• Professional for 24 months: $6 instead of $15 a month, $144 once instead of $360. That's the advertised 60%.
• Standard for 24 months: $5.40 instead of $9 a month, $129.60 once instead of $216 (40%).
• Purchase window: October 15 to December 1, 2026. You pay both years upfront in a single, non-refundable payment.
• Who qualifies: new users. One FAQ answer includes free-plan users, the next one only says new users. Existing paid accounts are out.
• Afterwards: after 24 months, Sender says the plan switches to monthly Professional. The page doesn't give a price for that.

The 60% is real. The 30% is set dressing.

The two-year deal is measured against the monthly price, the most expensive comparison available. The fair benchmark is annual billing, and Professional costs $10.50 a month that way. In September the page read "Billed $180 $126 for the first year": 30% off list, for year one.

So for two years of Professional: $144 with the deal, versus $252 if year two costs $126 again, or $306 if it renews at the $180 list price. The real saving is $108 to $162. Decent money. Just not $216.

My rule of thumb: a Black Friday discount gets measured against the price from a few weeks ago, not the list price. Sender's two-year deal passes that test. Its "only on Black Friday" annual discount doesn't.

The MCP server is the more interesting part

Per Sender, it runs on a single endpoint with OAuth login, no API key to copy around, and the homepage says it's free. Your AI assistant can read campaign reports, create segments and build workflows. What I like: campaigns only ever land as drafts, workflows stay inactive, and Sender says the assistant never hits "Send" on its own. That's human in the loop by product design, not by hope. It's exactly how I'd scope a first agent project in email marketing.

The catch

• Two years locked in, no refund. Discover a deliverability problem in month three and you've still paid.
• The free plan is often enough. Up to 2,500 subscribers and 15,000 emails a month, with Sender branding in your emails.
• The pages contradict each other. The pricing page says 30% off annual, an FAQ on the deal page says 20%. Only checkout will tell you which applies.
• Dollar pricing. If you budget in euros, you carry two years of currency risk upfront.

What I'd do now

• Trial Professional for 14 days → no credit card required. Per the deal page, the discount still applies if you upgrade before December 1.
• Test deliverability → send one real campaign to a small list and check the spam folders at Gmail, Outlook and the providers your audience uses. That decides it, not the price.
• Connect the MCP server to Claude or ChatGPT → have it analyse a report and build a draft. If that saves you real time, the two-year price is an argument. If not, it isn't.

Bottom line: The 60% only holds because you prepay two years. The "only on Black Friday" deal was already there in September.