Sidemail
Mailook
Mailivery
Postal
Twilio
MailChimp
Mailjet
Flowmailer
ForthWrite
ReclaimAI
Superhuman
Shortwave
Serif AI
Gemini
Gmail
LIAM
Sidemail is an all-in-one email delivery platform mainly focusing on SaaS businesses. It covers everything for delivering and managing emails โ transactional emails, email marketing, email automation, contact profiles management, and subscribe forms. What developers and business owners appreciate the most is its easy integration, intuitive UI, and amazing customer care.
Sidemail was founded in 2018 and is based in the EU.
Email sending API Start sending transactional emails like password reset or welcome emails from your application in just a few minutes โ Sidemail makes it incredibly easy to create, maintain, analyze, and deliver beautiful transactional emails.
Product updates & newsletter Send product update emails (newsletters) and let your users know whatโs new in your product with Messenger. Itโs as easy as sending an email directly from your Gmail account, except you can send to all users and see the stats.
Automated email sequences Set up email automation to deliver your email or sequence of emails when a defined event happens โ for example, user sign-up. Use it to onboard new users, convert them into paying customers, and minimize churn.
Hosted subscribe forms Collect subscribers effortlessly without touching a code. Sidemail subscribe forms are simple to set up, easy to share, and you can customize them to fit your brand.
Contact management All your subscribers in one neatly organized place that always has enough room. Collect email addresses, and grow your email list with simple to set up subscribe forms that are easy to share.
No-code email editor Create responsive, well-tested email templates without code โ Sidemail no-code editor is the simplest way to craft professionally-looking, responsive email templates that won't break in Outlook. Just upload a logo, pick brand colors, and you're ready to start sending in style.
ForthWrite is an AI email writing assistant for Gmail and Outlook that learns your writing style from your real sent mail. The more you use it, the more it sounds like you. Get smart drafts in seconds, auto-draft replies before you open your inbox, and maintain your personal voice at scale. Free to start, no credit card required. Works inside Gmail and Outlook on the web.
How it works
ForthWrite captures your tone, sentence rhythm, and sign-offs from your actual sent emails, then uses that profile to generate drafts that match how you write, not a generic AI voice. Every draft you edit or send improves the model over time.
Key features
Who uses it
Professionals who send high volumes of relationship-critical email: lawyers, financial advisors, recruiters, account executives, founders, and anyone who wants their inbox handled without sounding like a chatbot wrote it.
Pricing
Free tier includes 10 drafts per week with no credit card required. Paid plans start at $12/month and include unlimited drafts, custom persona prompts, and auto-draft.
Sidemail ForthWriteForthWrite's answer:
Next.js, React, Supabase, Anthropic Claude, OpenAI, Stripe, Vercel, Chrome Extensions API
ForthWrite's answer:
ForthWrite learns your writing style from your actual sent mail, not a generic prompt. Every draft sounds like you wrote it because it was trained on how you actually write. It also auto-drafts replies before you open your inbox, so your email is partially handled before your day starts.
ForthWrite's answer:
Most AI email tools give you a blank box and a "write for me" button. ForthWrite builds a voice profile from your sent history and gets more accurate with every draft you edit or send. Unlike ChatGPT or Gemini, it works natively inside Gmail and Outlook with no copy-paste. Unlike Lavender, it writes the draft, not just scores it.
ForthWrite's answer:
Professionals who send high volumes of relationship-critical email and cannot afford to sound generic: lawyers, financial advisors, recruiters, account executives, consultants, and founders managing their own inbox.
ForthWrite's answer:
Built out of frustration with AI writing tools that produce text that sounds nothing like the person sending it, and as a way to handle large amounts of daily email. The core insight was that your sent mail is the best training data you already have, and no tool was using it.
I built ForthWrite because I kept sending emails that sounded like they came from the same generic AI as everyone else. After launching it, I still use it for my own inbox every day, which is about the most honest endorsement I can give.
The Chrome extension lives inside Gmail and Outlook on the web. Open a thread, hit Alt+Shift+D, and a draft comes back in your voice, not a template. The free tier is real: 10 drafts per week, no API key, no credit card. Voice matching is included on free, because that is the point.
What keeps it useful compared to Gemini or a chat tab: it learns from what you actually send. Every edit you make before hitting send becomes a signal. Over time the drafts drift closer to how you really write, and the dashboard shows the improvement curve so you can see it happening.
The web compose surface lets you draft from forthwrite.ai without installing anything, useful for people who want to try before committing to the extension.
Standard adds recipient-aware and intent-aware drafting plus AI coaching. Pro adds auto-draft (replies waiting when you open Gmail), batch replies, and Prompt Lab for version-controlling your prompts. Teams adds a shared persona and seat-level analytics.
ForthWrite is not for everyone. If you just need quick replies and tone does not matter, Gemini is free and already in your inbox. ForthWrite is for people where tone does matter: client communication, relationship-driven threads, external correspondence where sounding off costs something real.
Disclosure: I am the founder and use it daily. Happy to answer questions in the comments.
Based on our record, Sidemail seems to be more popular. It has been mentiond 6 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Setting up DKIM may sound technical, but modern email providers (ESP) and services have made it straightforward. As a SaaS company, youโll typically use an email sending service (like Sidemail, SendGrid, Mailgun, etc.) or your own mail server to send emails. Letโs break down the setup process:. - Source: dev.to / about 1 year ago
Sidemail.io: Tailored for startups and SaaS companies, Sidemail focuses on simplicity, deliverability, and ease of use. It specializes in transactional email โ things like sign-up confirmations, password resets, and onboarding sequences โ and helps ensure those critical messages are delivered fast and reliably. But also offers everything that startups need for sending marketing emails and setting up email... - Source: dev.to / about 1 year ago
Another effective approach is to use an email platform built specifically for SaaS communication. These tools make it easy to design and send dunning emails triggered by your app or billing system. Platforms like Sidemail let you create automated email sequences and trigger them via API or webhook when specific events occur โ such as a failed payment. - Source: dev.to / over 1 year ago
Use a Reputable ESP or Infrastructure: Your email service provider can influence your deliverability. Good ESPs enforce best practices and provide tools to help your reputation (like automatic suppression of bounces, feedback loop integration, and validated authentication). They may also have โmanagedโ shared IP pools that are kept clean. If youโre a smaller sender, being on a high-quality shared IP with other... - Source: dev.to / over 1 year ago
Do you need help with your transactional emails? We specialize in email delivery and love working with clients directly. Whether you need help understanding transactional emails, managing and delivering emails for your service, integrating emails into your application, or anything else related to emails, weโve got you covered. Feel free to reach out to me directly at kristyna@sidemail.io or check... - Source: dev.to / over 1 year ago
Mailook - Identify & fix your email deliverability issues for free ๐
ReclaimAI - Helps users prioritize their work and personal calendars
Mailivery - Land Your Emails in the Inbox, Not the Spam Folder
Superhuman - Superhuman is an email management tool.
Postal - Open source mail delivery platform, alternative to Mailgun or Sendgrid
Shortwave - Email smarter & faster with a reinvented experience for your Gmail