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Apps with 'SMTP Support' feature

  1. Thunderbird icon
    • Mac
    • Windows
    • Linux
    • Homebrew
    • PortableApps.com
    • Chocolatey
    • Flathub
    • AppImageHub
    • Snapcraft
    • BSD
    • Haiku
    96 alternatives to Thunderbird 

    Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.

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    1.  Extensible by Plugins/ExtensionsThunderbird can be extended with add-ons, plugins and extensions.
    2.  Multiple Account supportThunderbird support multiple accounts without the need to logout and login
    3.  Calendar IntegrationThunderbird lets you sync your tasks and events with your calendar application.
    4.  Email OrganizerThunderbird allows you to take control of your inbox by filtering and control tools.
    5.  Dark ModeThunderbird supports dark mode for comfortable usage in low light conditions.
    6.  Support for ThemesYou can use themes and templates to change the look and feel of Thunderbird.
    7.  Integrated Password ManagerThunderbird lets you access all the passwords you’ve saved across your different devices.
    8.  Import/Export OPML FeedsImport and export your feed subscriptions into OPML format with Thunderbird.
    9.  PortableThunderbird can be used from a USB stick or similar with no prior installation.
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  2. Disroot is a platform providing online services based on principles of freedom, privacy, federation and decentralization.

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    1.  Privacy focusedDisroot is considered a privacy friendly alternative.
    2.  DecentralizedDisroot is based on a decentralized infrastructure with no single entity controlling it.
    3.  Ad-freeDisroot doesn't contain any form of external advertising.
    4.  End-to-End EncryptionDisroot has E2E Encryption, for entire or parts of the app.
    5.  Support for AliasesDisroot supports aliases, so you can receive email without exposing your main email address
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  3. Zoho Mail icon
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    93 alternatives to Zoho Mail 

    Zoho Mail is an integrated email suite for modern enterprises, complete with Calendar, Notes, Tasks, Contacts, and Bookmarks. With over 15 million satisfied users and a decade of experience as a business email provider, we’re equipped to sail through any challenge unique to an...

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    1.  Ad-freeZoho Mail doesn't contain any form of external advertising.
    2.  Privacy focusedZoho Mail is considered a privacy friendly alternative.
    3.  Mail FilteringZoho Mail classifies email messages according to specified criteria, allowing you to automatically recognize fraudulent or spam messages.
    4.  Two-factor AuthenticationZoho Mail supports two-factor authentication (2FA).
    5.  Support for AliasesZoho Mail supports aliases, so you can receive email without exposing your main email address
    All-in-one view
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  4. Geary icon
    • Linux
    • BSD
    • GNOME
    • Flatpak
    52 alternatives to Geary 

    Geary is an email application built around conversations, for the GNOME 3 desktop.

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    Features
    1.  Multiple Account supportGeary support multiple accounts without the need to logout and login
    2.  Dark ModeGeary supports dark mode for comfortable usage in low light conditions.
    3.  Email OrganizerGeary allows you to take control of your inbox by filtering and control tools.
    4.  Spam FilterGeary can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
    5.  LightweightGeary consumes less device resources compared to similar apps.
    Main window
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  5. Mailfence icon
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    57 alternatives to Mailfence 

    Mailfence is a secure and private email service that fights for online privacy and digital freedom.

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    Features
    1.  Calendar IntegrationMailfence lets you sync your tasks and events with your calendar application.
    2.  Privacy focusedMailfence is considered a privacy friendly alternative.
    3.  Ad-freeMailfence doesn't contain any form of external advertising.
    4.  Mail FilteringMailfence classifies email messages according to specified criteria, allowing you to automatically recognize fraudulent or spam messages.
    5.  PGP EncryptionMailfence supports PGP, an encryption system used for sending encrypted emails and files.
    6.  OpenPGPMailfence supports OpenPGP, a standard of PGP encryption that is open-source for public use.
    7.  AES-256 EncryptionMailfence has AES-256 Encryption, i.e. very strong security.
    8.  End-to-End EncryptionMailfence has E2E Encryption, for entire or parts of the app.
    9.  No TrackingMailfence will not track you or use your personal data.
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  6. Fastmail icon
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    58 alternatives to Fastmail 

    Fastmail provides one of the most secure and reliable email environments in the industry. Rock Solid Reliability. More safety.

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    Features
    1.  Support for AliasesFastmail supports aliases, so you can receive email without exposing your main email address
    2.  Ad-freeFastmail doesn't contain any form of external advertising.
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  7. Easily manage your marketing automation, email and SMS marketing campaigns, and transactional messaging all in one simple and powerful platform.

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    Features
    1.  Marketing AutomationSendinblue can automate marketing campaigns and activities throughout the customer journey by automatic workflows.
    2.  Auto ResponderSendinblue allows you to set automatic responses to messages or emails based on user actions or pre-established rules.
    Marketing Automation
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  8. FreeScout icon
    • Mac
    • Windows
    • Linux
    • MySQL Community Edition
    • Self-Hosted
    • MariaDB
    • Laravel
    • PHP
    • Cloudron
    25 alternatives to FreeScout 

    Free open source Zendesk & Help Scout alternative: help desk, shared mailbox, email management and analytics. FreeScout is a pure PHP7+MySQL application which can be easily deployed even on a shared hosting.

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    Features
    1.  Auto ResponderFreeScout allows you to set automatic responses to messages or emails based on user actions or pre-established rules.
    2.  Privacy focusedFreeScout is considered a privacy friendly alternative.
    Screenshot
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  9. Mailgun icon
    • Online
    55 alternatives to Mailgun 

    Mailgun is email automation for developers. Use our REST APIs to effortlessly send, receive and track email from your website or application.

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  10. MailHog icon
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Docker
    25 alternatives to MailHog 

    MailHog is an email testing tool inspired by MailCatcher, but easier to install.

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    Features
    1.  PortableMailHog can be used from a USB stick or similar with no prior installation.
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  11. Interlink Mail & News is a free e-mail client based on open source community code built on the Unified XUL Platform. It is available for Microsoft Windows and Linux (with other operating systems in development).

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    Features
    1.  Multiple Account supportInterlink Mail & News support multiple accounts without the need to logout and login
    2.  Integrated Password ManagerInterlink Mail & News lets you access all the passwords you’ve saved across your different devices.
    3.  Extensible by Plugins/ExtensionsInterlink Mail & News can be extended with add-ons, plugins and extensions.
    4.  Import/Export OPML FeedsImport and export your feed subscriptions into OPML format with Interlink Mail & News.
    5.  Support for ThemesYou can use themes and templates to change the look and feel of Interlink Mail & News.
    Screenshot
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  12. SendPulse icon
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    206 alternatives to SendPulse 

    SendPulse maximizes the core metric of e-mail marketing - newsletter open rate - atomatically. We collect tons of data about billions of subscribers in our system and predict the best time and channel for each subscriber when to deliver the next message to him.

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  13. Papercut icon
    • FreeOpen Source
    • Windows
    15 alternatives to Papercut 

    Papercut is a simplified SMTP server designed to only receive messages (not to send them on) with a GUI on top of it allowing you to see the messages it receives.

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    Instant Feedback When New Email Arrives
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  14. The Bat icon
    • Windows
    • S/MIME
    • OpenPGP
    61 alternatives to The Bat 

    The Bat! is a secure email client software, built to protect your correspondence against third-parties.

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    Features
    1.  PGP EncryptionThe Bat supports PGP, an encryption system used for sending encrypted emails and files.
    2.  Support for scriptingThe Bat supports scripts and macros to automate or customize tasks.
    3.  GPG EncryptionThe Bat supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
    4.  PortableThe Bat can be used from a USB stick or similar with no prior installation.
    Main Window
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  15. Sendgrid icon
    • FreemiumProprietary
    • Online
    75 alternatives to Sendgrid 

    Scalable email delivery for transactional email SendGrid transparently handles DKIM, SPF, ISP rate limits, content inspection, bounces, and spam reports to help users achieve higher deliverability. SendGrid integrates in minutes by just changing three SMTP settings.

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