Cheapest custom-domain email that still does IMAP

1. Why IMAP still matters (demand, not testimonials)

People hunting for custom-domain mail keep asking the same practical question on public threads: which host is cheap and still works in Thunderbird, Apple Mail, Outlook, or the Gmail mobile app over standard protocols—not web-only.

• The Hacker News story All I wanted was a custom domain email (fetched 6 Nov 2026) debates Zoho free, Migadu, Purelymail, Fastmail, Proton and iCloud+ across dozens of comments—price, aliases, Apple Mail, and third-party clients keep coming up.
• newscracker’s comment on that thread warns that a cheap plan’s receive allowance can refuse further mail with a permanent error—mail is “just completely lost,” not held until you upgrade.
• Google’s own Gmail Help on third-party account support says starting January 2027 free Gmail ends third-party “Send as,” Gmailify and POP on the web. Recommended paths include a desktop client with IMAP/SMTP or moving the domain to a real host (including Workspace). See our Gmail 2027 checklist.
• That deadline maps to pain P101 in our research notes (status: watch): custom-domain email after Gmail “Send as” ends.

2. How we scored “cheapest that still does IMAP”

1. IMAP must be documented by the vendor If the pricing or help page does not clearly state IMAP (or third-party IMAP/SMTP client access), we mark it unverified—not a yes.
2. Starting price as shown on the vendor page We use the lowest published entry figure that still includes custom-domain mail + IMAP. Taxes, promos and regional lists can differ; prefer the vendor page if anything conflicts.
3. Free without IMAP is not a win for this page Zoho Mail Free is $0 but the Free row states IMAP/POP/ActiveSync are not included—so it cannot win a “still does IMAP” comparison.
4. Call out receive/send meters Cheapest dollars can still bounce or defer mail after caps. Cite vendor limit text where we found it.

3. 2026 comparison table (checked Nov 2026)

Figures and feature notes were read from the linked pages on 6 Nov 2026. Billing unit = how the vendor prices the plan. “IMAP?” = yes only when a fetched vendor page says so.

Bottom line from this table: among hosts with a clear IMAP yes and a published entry price we fetched on 6 Nov 2026, Purelymail at $10/year is the lowest flat yearly figure. Closest paid IMAP runners-up on sticker price: Zoho Mail Lite at US$1/user/mo yearly (~US$12/user/year estimate), iCloud+ from US $0.99/mo if you already want Apple storage, then Migadu Micro at $19/year.

4. Cheapest $ can still drop mail — read the meters

Price alone is a bad ranking if incoming mail vanishes when you spike. Evidence and vendor text:

• newscracker (HN) describes a cheap paid plan that, at the receive limit, refuses further mail with a permanent error so senders are told and the recipient may never see the message. Use that as a warning pattern—not as a claim about every host.
• Migadu pricing FAQ (fetched 6 Nov 2026): after incoming limits and up to ~25% tolerance, Migadu starts deferring messages; if the account stays over limits day after day, incoming mail can bounce. Outgoing overages are rejected after tolerance. Micro’s published caps are 200 in/day and 20 out/day.
• Purelymail pricing: no hard limits on the simple $10/year plan, but soft resource limits can push you onto advanced pricing. That is different from a hard bounce policy—still read their docs if your volume is unusual.

We did not independently load-test any provider. Limit behavior is quoted from the pages linked above.

5. Provider notes (only what the pages say)

Purelymail — lowest flat yearly IMAP figure we found

Simple pricing is $10 a year. Features state IMAP and POP3 (with IMAP IDLE), SMTP, custom domains at no extra charge, and catch-all routing. Homepage also states “Retrieve mail with IMAP or POP3.” Advanced pricing exists if soft limits are exceeded.

Zoho Mail — free is web/app-only; Lite adds IMAP

The Free row on Zoho Mail pricing explicitly says IMAP/POP/ActiveSync are not included. Zoho’s compare overview answers “Does Zoho Mail work with Outlook and Apple Mail?” with: on any paid plan, yes—IMAP, POP, and ActiveSync; free plan is webmail and mobile apps only. USD list for Mail Lite 5 GB: US$1 per user per month, yearly subscription only.

Migadu Micro — cheap flat rate with hard daily meters

Micro is $19/year with unlimited addresses and soft 5 GB storage. Support publishes IMAP at imap.migadu.com:993. Watch the daily in/out caps before picking Micro for a busy shared inbox.

Fastmail — IMAP yes on Individual/Standard; not on Basic

Individual is $5/mo when paying yearly ($60/12 months) and lists custom domains plus third-party apps. Server names and ports documents IMAP and states Basic plans do not include IMAP/SMTP.

Proton Mail Plus — IMAP through Bridge

Mail Plus shows $3.99/mo on the 12-month offer ($47.88/year), 1 custom domain, catch-all, and “Email client support (via IMAP/SMTP)” on paid rows. Proton Mail Bridge creates a local IMAP/SMTP endpoint for desktop clients on a paid plan—plan for a machine that can run Bridge if you need classic IMAP.

iCloud+ — IMAP for iCloud Mail; domain limits

iCloud+ plans include Custom Email Domain on every tier (US 50 GB from $0.99/mo). Support 102540: up to five domains, 10 addresses each. Support 102525: iCloud Mail uses IMAP and SMTP; no POP. Best fit if you already live in Apple Mail / Family Sharing—not a generic “any client, any OS” pitch beyond what Apple documents.

Google Workspace — contrast, not the cheap IMAP winner

Business Starter listed $7 / user / month (USD) when we fetched the page on 6 Nov 2026, with time-limited intro discounts also shown. Google’s Gmail help page points people who need a custom domain in Gmail long term toward Workspace. We mark IMAP on this row as “verify in Google docs” because the marketing pricing page did not print the word IMAP in the content we captured.

6. Quick picks (estimates from the table above)

• Lowest published yearly IMAP host we verified: Purelymail simple pricing at $10/year.
• Want IMAP on a known big brand near that price: Zoho Mail Lite (~US$12/user/year on annual USD list) or iCloud+ 50 GB if you already pay Apple.
• Want flat rate + many aliases, accept daily caps: Migadu Micro at $19/year—read the 200/20 day meters.
• Want polished apps and documented IMAP without Bridge: Fastmail Individual ($60/year) — skip Basic if you need IMAP.
• Want Gmail UI after January 2027: Google Workspace path Google documents; see the Send as checklist.

FAQ

Keep reading

• Gmail “Send as” ending January 2027 — options checklist
• Home — custom domain email guides
• About MailChooser — how we cite prices

Sources used for this page

• HN — All I wanted was a custom domain email
• HN — newscracker on receive limits
• Gmail Help — third-party email account support changes
• Purelymail pricing
• Purelymail features (IMAP/POP3)
• Purelymail advanced pricing
• Migadu pricing
• Migadu support (IMAP parameters)
• Zoho Mail pricing
• Zoho Mail compare overview (IMAP on paid plans)
• Fastmail pricing
• Fastmail — server names and ports (IMAP; Basic exclusion)
• Proton Mail pricing
• Proton Mail Bridge
• Apple Support — Custom Email Domain
• Apple Support — iCloud+ plans and pricing
• Apple Support — iCloud Mail IMAP/SMTP settings
• Google Workspace pricing

Unverified on this page: Namecheap Private Email current public pricing (optional row skipped—page not used for a number); exact Google Workspace IMAP wording on the marketing pricing URL (mark as verify-in-admin); whether a specific Purelymail or Migadu account will hit soft/hard limits for your traffic; Apple UI steps beyond 102540/102525/108047; any affiliate commission (none joined).