nomoat / Sidemail / Alternatives
Alternatives to Sidemail
Sidemail: Sends app emails like password resets through an API or SMTP, plus product updates and automated sequences, for SaaS companies. Here are 23 other products that do a similar job. Of these, 18 have a free plan.
- Lettermint
Sends app and site emails such as receipts and password resets through EU-only servers, with an API, SMTP and SDKs.
Free plan · Email marketing · Developers
- Maileroo
An SMTP relay and email API for sending transactional and marketing mail from apps, with searchable delivery logs.
Free plan · Transactional email · Developers
- turboSMTP
SMTP relay and email API for sending transactional emails and newsletters, with delivery tracking and reports.
Free plan · Email marketing
- Mail Baby
Outbound SMTP relay for servers and sites that filters spam and malware and handles sender reputation, billed per email.
Subscription · Transactional email · Developers
- Pidgeon
Gives AI agents their own email addresses and inboxes through an API, hosted in the EU, for developers building agents.
Since 2026
Free plan · Transactional email · Developers
- Pingram
One API for sending and receiving email, SMS and voice calls, with US A2P 10DLC SMS registration handled for you.
Free plan · Transactional email · Developers
- SendRaven
Lets AI agents send, receive and reply to email in threads over an API or MCP, with usage limits and approvals.
Free plan · Transactional email · Developers
- SendStreak
Sits between your app and SES, Postmark, Gmail or SMTP to add templates, retries, logs and routing without switching provider.
Free plan · Transactional email · Developers
- Sendwithus
Lets teams edit, test and send transactional email templates without code deploys, with A/B tests and analytics.
Since 2014
Subscription · Transactional email · Software companies
- Noptin
WordPress plugin that collects email subscribers, sends newsletters and new post alerts, and runs simple automations.
Free plan · Email marketing · Creators and writers
- Getsitecontrol
Builds website popups and signup forms, then sends newsletters and automated emails, billed by emails sent rather than list size.
Free plan · Email marketing · Online sellers
- Maildroppa
Lets small businesses collect subscribers, send newsletters and set up automatic follow-up emails, with a free plan.
Free plan · Email marketing
- Postalion
A WordPress plugin for building subscriber lists and sending newsletters and automatic emails from your own site.
Free plan · Email marketing · Online sellers
- Retainful
Sends email and WhatsApp campaigns and abandoned cart reminders for online stores, with signup forms and coupons.
Free plan · Email marketing · Online sellers
- AI Flash Tune
WooCommerce plugin that reminds customers about unfinished orders by email and points out where a shop is losing revenue.
Free plan · Email marketing · Online sellers
- CartBounty
A WooCommerce plugin that records abandoned carts and sends email, SMS or push reminders to win back the sale.
Free plan · Email marketing · Online sellers
- Chimpmatic
WordPress plugin that adds Contact Form 7 sign-ups to Mailchimp and other email tools, with tags, groups and GDPR opt-in.
Free plan · Email marketing
- Custom SMTP
WordPress plugin that sends site email through a proper SMTP provider and logs each message so you can see if it arrived.
Free · Transactional email
- Doppler
Design, send and measure email campaigns and push messages, with a WooCommerce plugin for online shops.
Free plan · Email marketing
- Groundhogg
Contact management, email broadcasts and automated flows that run on your own WordPress site.
Subscription · CRM and sales
- Metorik
Sales reports, customer segments and automated emails for WooCommerce and Shopify store owners.
Subscription · Email marketing · Online sellers
- Recapture
Sends automated email and SMS to win back abandoned carts and repeat buyers for Shopify, WooCommerce and other stores.
Free trial · Email marketing · Online sellers
- Sender
Email and SMS marketing with automations, popups and templates for small businesses, free up to 2,500 subscribers.
Free plan · Email marketing