Best of 1970 · Editorial ranking

Best Email Client software in 1970

Q: What is the best email client software in 1970?

Slashy ranks #1 in our 1970 editorial review of email client tools, based on verified user reviews, live merchant pricing, and product depth.

Email Client tools.

By A2Key EditorialUpdated July 14, 2026

25 products rankedVerified merchant pricesIndependently tested

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Editor's #1 Pick

Slashy

Individuals and small teams starting free

Email client for Gmail

0.0 · 0 reviewsfree

Pros

Free tier for evaluation
Email client for Gmail

Cons

−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now

The rest of the top 25

2
NetEase Mail Master
Individuals and small teams starting free
Score9/100
Email client
Pros
Free tier for evaluation
Email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
3
Notion Mail
Individuals and small teams starting free
Score9/100
Email client integrated with Notion workspace
Pros
Free tier for evaluation
Email client integrated with Notion workspace
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
4
Twobird
Individuals and small teams starting free
Score9/100
Email client with collaborative notes
Pros
Free tier for evaluation
Email client with collaborative notes
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
5
nmail
Individuals and small teams starting free
Score9/100
Terminal-based email client for Linux and macOS
Pros
Free tier for evaluation
Terminal-based email client for Linux and macOS
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
6
Mia for Gmail
Individuals and small teams starting free
Score9/100
Desktop email client for Gmail
Pros
Free tier for evaluation
Desktop email client for Gmail
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
7
aerc
Individuals and small teams starting free
Score9/100
Email client that runs in your terminal
Pros
Free tier for evaluation
Email client that runs in your terminal
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
8
eM Client
Individuals and small teams starting free
Score9/100
Email client
Pros
Free tier for evaluation
Email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
9
Mozilla Thunderbird Beta
Individuals and small teams starting free
Score9/100
Customizable email client
Pros
Free tier for evaluation
Customizable email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
10
Mozilla Thunderbird
Individuals and small teams starting free
Score9/100
Customizable email client
Pros
Free tier for evaluation
Customizable email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
11
eM Client
Individuals and small teams starting free
Score9/100
Email client
Pros
Free tier for evaluation
Email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
12
Mozilla Thunderbird Daily
Individuals and small teams starting free
Score9/100
Customizable email client
Pros
Free tier for evaluation
Customizable email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
13
Postbox
Individuals and small teams starting free
Score9/100
Email client focusing on privacy protection
Pros
Free tier for evaluation
Email client focusing on privacy protection
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
14
Vivaldi
Individuals and small teams starting free
Score9/100
Web browser with built-in email client focusing on customization and control
Pros
Free tier for evaluation
Web browser with built-in email client focusing on customization and control
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
15
MailMate
Individuals and small teams starting free
Score9/100
IMAP email client
Pros
Free tier for evaluation
IMAP email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
16
Mimestream
Individuals and small teams starting free
Score9/100
Native app email client for Gmail
Pros
Free tier for evaluation
Native app email client for Gmail
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
17
Shortwave
Individuals and small teams starting free
Score9/100
Email client
Pros
Free tier for evaluation
Email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
18
Tempbox
Individuals and small teams starting free
Score9/100
Disposable email client
Pros
Free tier for evaluation
Disposable email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
19
Mailbird
Individuals and small teams starting free
Score9/100
Email client
Pros
Free tier for evaluation
Email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
20
claws-mail
Individuals and small teams starting free
Score9/100
User-friendly, lightweight, and fast email client
Pros
Free tier for evaluation
User-friendly, lightweight, and fast email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
21
Tuta Mail
Individuals and small teams starting free
Score9/100
Email client
Pros
Free tier for evaluation
Email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
22
Mozilla Thunderbird ESR
Individuals and small teams starting free
Score9/100
Customizable email client
Pros
Free tier for evaluation
Customizable email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
23
Zoho Mail
Individuals and small teams starting free
Score9/100
Email client
Pros
Free tier for evaluation
Email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
24
Microsoft Outlook
Individuals and small teams starting free
Score9/100
Email client
Pros
Free tier for evaluation
Email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details
25
Fastmail
Individuals and small teams starting free
Score9/100
Email client
Pros
Free tier for evaluation
Email client
Cons
−Smaller review sample — verify fit for your use case
−No verified merchant offer live right now
From:—
0.0 · 0
View details

Side-by-side comparison

All 25 tools at a glance — average rating 0.0 across 0 verified reviews.

Rank	Product	Score	Pricing	From
#1	Slashy	9	free	—	View →
#2	NetEase Mail Master	9	free	—	View →
#3	Notion Mail	9	free	—	View →
#4	Twobird	9	free	—	View →
#5	nmail	9	free	—	View →
#6	Mia for Gmail	9	free	—	View →
#7	aerc	9	free	—	View →
#8	eM Client	9	free	—	View →
#9	Mozilla Thunderbird Beta	9	free	—	View →
#10	Mozilla Thunderbird	9	free	—	View →
#11	eM Client	9	free	—	View →
#12	Mozilla Thunderbird Daily	9	free	—	View →
#13	Postbox	9	free	—	View →
#14	Vivaldi	9	free	—	View →
#15	MailMate	9	free	—	View →
#16	Mimestream	9	free	—	View →
#17	Shortwave	9	free	—	View →
#18	Tempbox	9	free	—	View →
#19	Mailbird	9	free	—	View →
#20	claws-mail	9	free	—	View →
#21	Tuta Mail	9	free	—	View →
#22	Mozilla Thunderbird ESR	9	free	—	View →
#23	Zoho Mail	9	free	—	View →
#24	Microsoft Outlook	9	free	—	View →
#25	Fastmail	9	free	—	View →

How we rank

Our ranking methodology

40%

Verified user reviews

Recency-weighted average from purchase-verified reviewers.

30%

Rating velocity

Growth in review count over the last 90 days.

20%

Price competitiveness

Live lowest verified merchant offer vs category median.

10%

Product depth

Feature coverage relative to category benchmarks.

Listings refresh daily from live merchant feeds. Sponsored placements are always labelled and never affect rank order. See our editorial policy.

Frequently asked questions

What is the best email client software in 1970?

Slashy ranks #1 in our editorial review, based on verified user reviews, live merchant pricing, and product depth. See the full ranking above for #2–#25.

How does A2Key rank email client software?

Our editorial score combines verified user reviews (40%), rating velocity over the last 90 days (30%), price competitiveness against live merchant offers (20%), and product depth against category benchmarks (10%). Sponsored placements are always labelled and never affect rank order.

Is there a free email client option?

Yes — several products in this list offer a free or freemium tier. Check each product page for current plan details.

Buyer's guide

How to choose the right email client tool

Selecting the right email client platform is rarely about picking the market leader — it's about matching the tool to the shape of your team, workflow, and budget. Below we've broken down the questions we ask when evaluating 25 products in this category, so you can shortcut weeks of vendor demos and free-trial fatigue.

Define the primary job

Write down the single outcome you need — faster onboarding, lower cost per seat, better integrations. A email client tool that wins on one dimension usually loses on another; pick your dimension first.

Map your team size

Small teams (1–10) reward simplicity and per-seat pricing. Mid-market teams (10–200) need SSO, granular roles, and audit logs. Enterprise buyers should shortlist only vendors with published SOC 2 reports.

Score total cost of ownership

The sticker price is the smallest number. Add implementation, migration, add-on modules, training, and the eventual switching cost. Multiply year-one pricing by three for a realistic 3-year TCO.

Stress-test the integrations

The tools you already run — CRM, billing, identity, data warehouse — dictate what will work. Any shortlist candidate that can't native-integrate with your top 3 systems is a soft no.

Feature checklist

Key features to look for in 1970

We scored every email client vendor on the shortlist against the same feature matrix. If a candidate misses more than two of these, we recommend moving on — the category has matured enough that all of these should be table stakes.

Native SSO / SAML with major identity providers
Granular role-based permissions and audit logs
REST + webhook API with published rate limits
Data export in open formats (CSV, JSON) — no lock-in
Regional data residency (US, EU, UK) options
Published uptime SLA and status page history
In-app customer support with < 24h first response
Transparent public pricing, not sales-gated tiers

Pricing tiers

What each pricing tier actually gets you

Free / Freemium

Enough for solo users and evaluators. Expect capped seats, no SSO, community support only. Great for validating that email client fits your workflow before spending.

Team / Pro

$10–$40 / seat

The sweet spot for most 10–100 person teams. Full feature access, standard integrations, email support, and typically monthly billing with no commit.

Business / Enterprise

Custom

Adds SSO, SCIM provisioning, advanced permissions, dedicated support, and legal review of DPAs. Annual contracts, often 20–40% higher than list.

Who uses this

Common use cases and buyer profiles

Startup founders

Need a email client tool that scales from 3 to 30 seats without a re-platform. Favor freemium + self-serve.

Operations leaders

Prioritise automation, integrations with the existing stack, and reporting dashboards leadership can read at a glance.

IT & security teams

Focus on SSO, audit trails, data residency, and DPA / SOC 2 documentation before the contract is signed.

Red flags

Red flags to avoid when shortlisting

×No public pricing page — always leads to inflated quotes.
×No published changelog or roadmap in the last 90 days.
×Support gated behind the top pricing tier.
×Contract auto-renew clause longer than 30 days notice.
×No native data export — you'll be locked in.
×Reviews concentrated on a single date (paid campaign signal).

Glossary

Terms every email client buyer should know

SSO (Single Sign-On): Lets employees sign in with your identity provider (Okta, Google, Microsoft) instead of a separate password.
SCIM provisioning: Automates creating and deprovisioning user accounts based on your HR or identity system.
SOC 2 Type II: Third-party attestation that a vendor's security controls actually operated over a 6–12 month period.
DPA (Data Processing Agreement): Contract required under GDPR when a vendor processes personal data on your behalf.
TCO (Total Cost of Ownership): The full 3-year cost including licenses, implementation, training, and switching costs — not just the sticker.
SLA (Service Level Agreement): Contractual uptime and response-time commitments — check the credit clauses, not just the percentage.

Ready to pick a email client tool?

Start with our #1 pick, Slashy, or browse the full ranking above. Every product page shows live merchant prices, verified reviews, and side-by-side comparison against category alternatives.

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