Software Alternatives, Accelerators & Startups

isync (mbsync) VS Sidemail

Compare isync (mbsync) VS Sidemail and see what are their differences

isync (mbsync) logo isync (mbsync)

mbsync is a command line application which synchronizes mailboxes.

Sidemail logo Sidemail

Sidemail is an all-in-one email platform for SaaS. Estd. 2018. Made in EU. GDPR compliant.
  • isync (mbsync) Landing page
    Landing page //
    2021-08-11
  • Sidemail Sidemail homepage
    Sidemail homepage //
    2026-07-16

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.

isync (mbsync) features and specs

  • Efficient Synchronization
    Isync (mbsync) efficiently synchronizes mailboxes, making it suitable for users who need to keep their mail in sync across multiple devices or platforms.
  • IMAP and Maildir Support
    It supports both IMAP and Maildir formats, offering flexibility for different email storage configurations.
  • Open Source
    As an open-source tool, isync allows users to inspect, modify, and contribute to the code, fostering community support and transparency.
  • Lightweight
    Isync (mbsync) is lightweight and doesn't consume extensive system resources, making it a good choice for users with limited resources.
  • Customizable
    The tool offers a high degree of customization, letting users configure synchronization options to match their specific needs.

Possible disadvantages of isync (mbsync)

  • Complex Configuration
    Setting up isync can be complex, requiring a solid understanding of configuration files and command-line operations.
  • Limited GUI Support
    Isync lacks a graphical user interface, which can be a hurdle for users who prefer GUI-based applications over command-line tools.
  • No Built-in Scripting or Scheduling
    Users need to rely on external scripts or scheduling tools (like cron) to automate synchronization tasks, adding an extra layer of complexity.
  • Documentation
    The documentation for isync may not be as comprehensive or user-friendly as that of some commercial alternatives, potentially causing difficulties for new users.

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.

Category Popularity

0-100% (relative to isync (mbsync) and Sidemail)
Email
40 40%
60% 60
Monitoring Tools
100 100%
0% 0
Email Marketing
0 0%
100% 100
Email Migration
100 100%
0% 0

User comments

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Social recommendations and mentions

Based on our record, isync (mbsync) should be more popular than Sidemail. It has been mentiond 17 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.

isync (mbsync) mentions (17)

  • Imapsync
    Instead of migrating from server to server โ€” and remaining on computers I donโ€™t own - I download locally which it looks this tool doesnโ€™t do. I use mbsync/isync which is fast and reliable. https://isync.sourceforge.io/. - Source: Hacker News / over 1 year ago
  • Seeking Advice on Backing Up Emails from External Email Providers - Not Hosting
    There are also isync and OfflineIMAP which sync email locally. Source: about 3 years ago
  • Suggestions for long term email storage
    I set up mbsync to mirror the current (last 90 days) of my Fastmail IMAP account into another local Maildir, and told Notmuch to index that as well. This ensures a Notmuch search will cover both current & archived messages. Source: over 3 years ago
  • What's the benefit of using an email client?
    On my notebook I went full-on nerd and read and write emails mostly in the Emacs text editor. In particular I use isync to fetch emails via imap (that's independent from Emacs) and the Emacs extension mu4e to view, write and send emails. It's not something I recommend if you're not used to working with code and not using Emacs anyway, but for me it makes sense, since emails are just text and Emacs is good with... Source: over 3 years ago
  • How to run a script to cleanup emails ?
    Myself, I keep a local copy of my mail using isync/mbsync. This allows me to use mutt and notmuch on my mail, or even just plain old grep. Granted, this also means you'll have to download your 30GB mailbox locally. Personally, I consider this a feature, as it gives me a local backup. Source: over 3 years ago
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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 / over 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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What are some alternatives?

When comparing isync (mbsync) and Sidemail, you can also consider the following products

imapsync - Console-based utility for migrating IMAP mailboxes.

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

MailStore - MailStore Home - A 100% free single-private-user desktop solution

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

Gmvault - Backup the emails in your Gmail account.

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