Software Alternatives & Reviews

Poste.io VS Slack

Compare Poste.io VS Slack and see what are their differences

Poste.io logo Poste.io

Full featured email server built in docker with free plan.

Slack logo Slack

A messaging app for teams who see through the Earth!
  • Poste.io Landing page
    Landing page //
    2023-03-12
  • Slack Landing page
    Landing page //
    2023-07-18

Poste.io videos

CREÁ UN SERVER DE CORREO EN 1 MINUTO / V2M: Poste

Slack videos

Review: How & Why We Use Slack At Our Office

More videos:

  • Review - What is Slack?
  • Tutorial - Slack App Tutorial: How & Why We Use SLACK For Our Remote Team

Category Popularity

0-100% (relative to Poste.io and Slack)
Email
100 100%
0% 0
Communication
0 0%
100% 100
Self-hosted Email
100 100%
0% 0
Project Management
0 0%
100% 100

User comments

Share your experience with using Poste.io and Slack. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare Poste.io and Slack

Poste.io Reviews

15 Best iRedMail Alternatives 2021
Poste.io supports all the popular email protocols including POP3, IMAP, and SMTP. Just like with iRedMail, you get web administration tools to help you manage domains, email accounts, and assign different rights for system administrators with Poste.io.
15 Best Email Hosting for Small Business (2019)
Poste.io system requirements: Poste.io does not have a specified system requirements. All you need is a 64-bit Linux distribution, enough CPU and free RAM to run Spamassassin and Clamav, Docker engine running.

Slack Reviews

  1. Best app for getting in touch with my colleagues

    Slack is best platform to be used for professional purposes. It helps me keep my professional and personal life separate.

    🏁 Competitors: Microsoft Teams
    👍 Pros:    Bulk messaging
    👎 Cons:    Sometimes the download is slow
  2. Best tool for messaging to business.

    Slack helps business to get their teams in touch with each other. The interface is very user friendly and easy to use.

    🏁 Competitors: Microsoft Teams
    👍 Pros:    Easy to use|User friendly interface
    👎 Cons:    Costly
  3. great tool for teamwork

    i have been using slack for my work and it is truly amazing. provides great effeciency and helps to manage a large number of team and stay connected throughout. reccomended for businesses with big teams

    👍 Pros:    High quality|User-friendly|Good support
    👎 Cons:    Notifications|Notification and alert

20 Telegram Alternatives to Chat With in 2024
Slack works more like a forum than Teams does – falling somewhere in between a forum and a chat software. It lets you organize discussions into different channels, as well as by thread. You can invite others into a thread by @mentioning them, and it lets you add lots of different types of content. Slack works really well for 1:1 audio meetings, “huddles,” that give you the...
Why we switched to Mattermost
Now, obviously core messaging functionality is critical. Mattermost is great there, but so is Slack. In fact, Slack features like third-party integrations and threaded messaging were missed greatly (thank you, Mattermost, for recently adding threaded messaging). So the relative parity between the solutions from a ‘speeds and feeds’ perspective was table stakes, but we...
Source: netfoundry.io
Microsoft Teams Vs Clariti: Which one should you choose?
The main reason behind the sudden rise of Teams is it is being offered at no added cost to Office 365 users. This strategy paid for Teams as it was able to increase its market share and overtake its potential rival Slack in no time. Though Microsoft is not earning any revenue (they may actually be losing money in selling Teams), they are able to sustain due to their deep...
Source: clariti.app
15 Best Instant Messaging Apps for Business
Clariti is a relatively new instant messaging app that has been gaining in popularity among small businesses and the startup community especially in the technology and media markets. A key reason for its success has been its ability to address issues that other long-standing tools like Slack and Teams have perpetuated with their chat-focused communication paradigm. Clariti...
Source: clariti.app
14 of the Best Slack Alternatives for 2022
Luckily, when it comes to choosing the right communication tool for your team, you have a variety of options. I’ve briefly covered the best apps your team might enjoy, but if you need more in-depth information on team chat tools like Slack, check out Chanty’s Slack alternatives review. It shares Chanty's experience and feedback from testing seven different team chat software...

Social recommendations and mentions

Based on our record, Slack should be more popular than Poste.io. It has been mentiond 208 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.

Poste.io mentions (46)

  • How to map Traefik2 generated LE certificates to Poste.io mail server?
    I've done the same on my VPS. The only difference is that I used docker-mailserver not poste.io. Source: 7 months ago
  • How to map Traefik2 generated LE certificates to Poste.io mail server?
    To my specific issue. I've had a small VPS hosting only the mailserver poste.io via docker-compose, that worked well and certificates for multiple domains were taken care of via poste's internal let'sencrypt support. Source: 7 months ago
  • Poste.io problems, cant send emails
    I am using poste.io on two other servers and they work just fine. I thought maybe its because of newer version, but downloading older versions doesnt seem to help. I can receive emails but I cant send them. They get stuck in the delivery queue. Source: 11 months ago
  • Need advice fixing my embarrassing email configuration.
    I've self-hosted my email for the last ~6 years, at first using mail-in-a-box; but more recently moving to a containerized poste.io instance. I don't have any issues with delivery; but it's likely due to how long I've been in existence. Source: about 1 year ago
  • haraka vs exim what you choose?
    If you have no experience with email servers, try docker-mailserver or poste.io. Source: about 1 year ago
View more

Slack mentions (208)

View more

What are some alternatives?

When comparing Poste.io and Slack, you can also consider the following products

mailcow - An open source mailserver suite.

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.

Mail-in-a-box - Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.

Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Mailu - Mailu is a simple yet full-featured mail server as a set of Docker images.

Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.