Software Alternatives, Accelerators & Startups

Sidemail VS Folderly

Compare Sidemail VS Folderly and see what are their differences

Sidemail logo Sidemail

Sidemail is an all-in-one email platform for SaaS. Estd. 2018. Made in EU. GDPR compliant.

Folderly logo Folderly

Folderly is an all-in-one email deliverability platform to supercharge your email performance. Locate, solve, prevent email deliverability pitfalls, and ensure that your emails reach the Inbox folder.
  • Sidemail Sidemail homepage
    Sidemail homepage //
    2025-07-09

About Sidemail

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.

Popular solutions

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 whatโ€™s new in your product with Messenger. Itโ€™s 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.

  • Folderly Landing page
    Landing page //
    2023-09-11

Folderly is more than just an email deliverability tool.

Deep email deliverability fixes, technical setup, access to an up-to-date deliverability score, user-friendly template management, team accounts, and, now, spam trigger detection with best practices to followโ€”all of these features assist you in reaching and maintaining 99.9% email deliverability.

Locate, solve, and prevent email deliverability pitfalls, and ensure your emails reach the Inbox folder. Never again let your emails be part of the 51% of all business emails that never reach the inbox. Make every email count, bringing in revenue and business opportunities.

How will you use Folderly?

  • Reach the recipients' Inbox. Folderlyโ€™s advanced algorithms analyze your outbound email campaigns and identify issues that cause your emails to be filtered out of recipients' inboxes.

  • Increase delivery, reply, and conversion rates. We will identify the most pressing issues by analyzing your entire email ecosystem and suggest the simplest ways to address them.

  • Skyrocket revenue from email outreach. By delivering 100% of your emails, you can significantly boost your sender score, generate more leads, and ultimately increase your email channel's ROI.

Folderly

$ Details
paid Free Trial $120.0 / Monthly (Folderly Premium)
Platforms
Google Workspace Office 365 Outlook Yahoo Zoho AWS Sendgrid SendinBlue Mailgun Sendpulse Intercom Klaviyo Sparkpost SMTP API Marketo Elastic Email Rackspace Technology
Release Date
-

Sidemail features and specs

  • Easy Setup
    Sidemail offers a straightforward setup process that allows users to quickly integrate email services into their applications without extensive configuration overhead.
  • User-Friendly Interface
    The platform boasts an intuitive and easy-to-navigate interface that makes it accessible for users with varying levels of technical expertise.
  • Automation Features
    Sidemail provides robust automation features that enable users to automate their email workflows, saving time and reducing manual efforts.
  • Reliable Delivery
    The service ensures high deliverability rates, ensuring that emails reach their intended recipients promptly and reliably.
  • Customizable Templates
    Users benefit from customizable email templates that can be tailored to meet specific branding and communication needs.

Folderly features and specs

  • Spam Fixing
  • Email Deliverability Testing
  • Email Placement Dashboard with Analytics
  • Technical Setup of Domain DNS and Authentication
  • Active Domain and IP Monitoringย 
  • Content Analysis and Recommendations
  • Email Templates Management
  • Spam Triggers
  • Best Practices
  • Dynamic Seed Rotation
  • Custom API Integration
  • Dedicated Customer Success Manager
  • Onboarding Support

Analysis of Folderly

Overall verdict

  • Overall, Folderly is a beneficial tool for businesses that rely heavily on email marketing and need to ensure their communications reach their audience's inbox. Its specialized focus on improving email deliverability and providing actionable insights makes it a valuable asset for enhancing email campaign performance.

Why this product is good

  • Folderly is often regarded as a good tool because it provides efficient email deliverability solutions. It helps businesses improve their email performance by reducing emails going to spam and enhancing inbox placement. This is achieved through features like email warm-up, domain and IP reputation management, and detailed deliverability analytics. Its user-friendly interface and comprehensive reporting tools make it accessible for businesses looking to maximize the efficiency of their email campaigns.

Recommended for

    Folderly is recommended for marketers, email campaign managers, and businesses that heavily depend on email as a primary communication tool, especially those who experience issues with emails being marked as spam. It is also suitable for businesses looking to optimize their outreach efforts and improve overall email deliverability rates.

Sidemail videos

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Folderly videos

Supercharge Your Email Deliverability With Folderly

More videos:

  • Review - From 15 to 98% Email Deliverability Rate for Slash | Folderly
  • Review - New Clients for BeforeHello after Working with Folderly
  • Review - Delivering Messages to the Inbox for the Kannaco Company | Folderly
  • Review - Getting stories delivered to the Inbox for PR & Communications company | Folderly

Category Popularity

0-100% (relative to Sidemail and Folderly)
Email
35 35%
65% 65
Email Marketing
17 17%
83% 83
Email Deliverability
0 0%
100% 100
Transactional Email
100 100%
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Sidemail and Folderly

Sidemail Reviews

We have no reviews of Sidemail yet.
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Folderly Reviews

  1. Valeria R.
    ยท Communications Manager at SOLV. ยท
    Folderly guarantees that our emails are delivered to the inbox

    Our field of work requires extensive communication via email; therefore, we needed a solution that would monitor our email deliverability rate and help us eliminate any possible issues causing our emails to land in spam, if they arise. Folderly performs its job well and protects our email reputation. The team has helped us fine-tune our email infrastructure, and is overall very responsive - they always answer our questions in a timely and detailed manner.

  2. Kate Kos
    ยท Partner Relations Manager at SaveMyLeads ยท
    Folderly saves our emails from spam

    With Folderly, we have a clear picture of the situation with our mailboxes, understand what exactly caused our emails to go to spam, and see our campaigns' performance getting better. The team is always ready to give us a helping hand and explain what we need to do next.

    ๐Ÿ‘ Pros:    Deliverability insights, spam issues fix, easy-to-use interface, responsive team
  3. Stacy
    ยท Marketing Specialist ยท
    Folderly team always goes extra mile

    We thought our email campaign is doing good, but Folderly team boosted results to super cool! They are always there to help and give insightful advice. If you have troubles with spam and want to improve your email deliverability, Folderly would be your best choice ;-)

    ๐Ÿ‘ Pros:    Super simple in use|All in one

Top 14 Email Warm-Up Tools for B2B SaaS
Folderly: Full deliverability service offering warm-up, remediation, audits, configuration help, and a managed roadmap for recovery from spam placement.
23 Best Cold Email WarmUp Tools in 2022 (Free + Paid)
The company is one of Belkinsโ€™s spin-off, a B2B Lead Generation Agency with a solid track record, created in 2015.Folderly presents itself as an AI-powered platform for increasing your email deliverability.
Source: inguide.in
Top 10 of the Best Email Warm Up tools in 2022
To warm up your email with Folderly, you will need to connect your domain and email address. The tool will then ask you to create a warm up email template and to run a spam test to examine your inbox and identify its deliverability issues. The warm up campaign will finally begin and your email address will interact with Folderly inboxes and paid senders. Not only do they...
Source: mailmeteor.com
7 Best Cold Email Warm-up Software
Folderly is an AI-based Platform to increase your mail open rate, click rate, deliverability, reply rate. Folderly goal is to help marketers accelerate their sales by helping them send emails that drive revenue. Folderly is trusted by Berkely, Titan Growth, born & bred, pillbox, Greater Rochester.

Social recommendations and mentions

Based on our record, Folderly should be more popular than Sidemail. It has been mentiond 60 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.

Sidemail mentions (6)

  • โญ DKIM and Its Setupโ€Š-โ€ŠExplained Simply with Examples
    Setting up DKIM may sound technical, but modern email providers (ESP) and services have made it straightforward. As a SaaS company, youโ€™ll typically use an email sending service (like Sidemail, SendGrid, Mailgun, etc.) or your own mail server to send emails. Letโ€™s break down the setup process:. - Source: dev.to / about 1 year ago
  • Email Deliverability Best Practices for SaaS Businesses ๐Ÿ’Œ
    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
  • Dunning Emails โ€“ Definition, Examples, Best Practices, and Automation Tools
    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 / about 1 year ago
  • The Importance of Domain Reputation in Email Deliverability
    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 โ€œmanagedโ€ shared IP pools that are kept clean. If youโ€™re a smaller sender, being on a high-quality shared IP with other... - Source: dev.to / over 1 year ago
  • What is a transactional email? Everything you need toย know
    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, weโ€™ve got you covered. Feel free to reach out to me directly at kristyna@sidemail.io or check... - Source: dev.to / over 1 year ago
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Folderly mentions (60)

  • Breaking Into Legal Tech
    Make โ€ข Build and automate workflows InvoiceBerry โ€ข Online invoicing for small businesses Gusto โ€ข Payroll, benefits and HR management Hive โ€ข Manage tasks, workflows and teamโ€™s work Lanva โ€ข Social video editing app. ClickUp โ€ข Manage tasks, docs, chat, goals and more Plausible โ€ข Open-source privacy-friendly web analytics Podcast Hawk โ€ข Podcast guest booking software. Writesonic โ€ข AI-driven content... Source: over 3 years ago
  • Why do businesses always have such long voice mail greetings?
    BTW, the same thing I noticed with emails. I recently started to work with them, and differentiating emails and sending them to the right group of people brings a more positive outcome. We recently checked it on https://folderly.com/. So, I think those things can be linked to each other. Source: almost 4 years ago
  • Is there somewhere an email client for mac that is not gmail, implements labels and supports IMAP?
    Finally, I would suggest you also use https://folderly.com/ in addition to those two email clients. I would help you avoid making your emails spammy and maintain a high email deliverability score. Itโ€™s essential if youโ€™re using email for business purposes. Source: almost 4 years ago
  • What email client are you using?
    Besides, I recently noticed that Apple mail didnโ€™t send my emails. I thought my clients didnโ€™t receive my emails because they were in the spam folder. But, I checked my email deliverability on https://folderly.com/, and it was OK. So, Iโ€™ve been looking at what makes my clients not get my emails and discovered that this email client doesnโ€™t send them for some reason. Source: almost 4 years ago
  • How to promote a sale event via email that won't look spammy?
    But, after testing my email campaign on my friends, I was left puzzled why my letters went to spam. I've read somewhere that you can run all your emails before launching the marketing campaign on https://folderly.com/. I did it, and my score wasn't the best, nor too low. I thought the reason might be in the attached PDF file and links to my store. Do you think that it might be the case? If yes, what are the... Source: almost 4 years ago
View more

What are some alternatives?

When comparing Sidemail and Folderly, you can also consider the following products

Mailook - Identify & fix your email deliverability issues for free ๐Ÿ‘€

Loops.so - We bought a billboard in Times Square and we're letting you advertise your startup on it!It's free.

Mailivery - Land Your Emails in the Inbox, Not the Spam Folder

Mailwarm - Email warmup tool to avoid spam folder, since 2020 - Backed by Email Deliverability Experts

Postal - Open source mail delivery platform, alternative to Mailgun or Sendgrid

Warmup Inbox - Warmup Inbox is a tool that automates the process of warming up your email inboxes, raising your sender reputation and inbox health automatically.