Sites and apps similar to Mailgun include useSend, which is open source with a free version. Other options are NexusProMail, SendPulse, Sendgrid and SendFleet. You're spoiled for choice with Email Marketing Services like Mailgun: we list more than 50 alternatives for self-hosting, Windows, iPhone, iPad and Mac.
Mailhooks makes it simple to receive inbound email in your app. Point your domain's MX records at us and every incoming message gets parsed and forwarded to your endpoint as a structured webhook.
United Kingdom
Mailzak powers your marketing campaigns without you making much efforts. With mailzak, email marketing is more than just sending mail. It takes into consideration how user behaves with those emails.
Outreachplus is a personalized email outreach software that provides functionalities including increasing traffic through link building, exposure through PR, building authority, and traffic through influencers.
AuthSMTP is the outgoing SMTP email service for your e-commerce website, mailing list or email application on most current computers and mobile devices.
The cost-efficient SMTP server provider for all your email marketing needs that ensures optimal and fast email delivery by reaching email directly into your customer’s inbox.
Latvia
EU
A multi-provider email API with guaranteed better deliverability. Fixes and retries failed deliveries across multiple providers. Works with SendGrid, Mailgun, Amazon SES, SparkPost and more.
United States
Motorical is a transactional email API and SMTP relay built around Motor Blocks — an isolated sending stream per project, with its own auth method, domain, rate limits, and delivery logs. Plans start at €2.
LatviaEU
The main purpose of Maileroo is to provide a transactional email service with real-time analytics and reporting, focusing on high deliverability and performance tracking of emails.
AI agents send email without knowing what was already sent. They ignore bounces, skip cooldowns, and blast the same contact three times in an hour. One bad loop and your domain reputation is gone.
Redirect emails from your business/custom domainname to any other mailbox (Gmail/Outlook). Please check out https://emailforward.mx !.
Lettr is the Email API for modern builders — design beautiful templates, send with confidence, monitor everything in real time, and stay deliverable. Built for teams and ready for vibe-coding.
CzechiaEU
