Software Alternatives, Accelerators & Startups

ProtonMail VS OpenSMTPD

Compare ProtonMail VS OpenSMTPD and see what are their differences

ProtonMail logo ProtonMail

Secure email with absolutely no compromises. Get your free encrypted email account today.

OpenSMTPD logo OpenSMTPD

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with...
  • ProtonMail Landing page
    Landing page //
    2023-10-15
  • OpenSMTPD Landing page
    Landing page //
    2019-03-05

ProtonMail

$ Details
freemium €5.0 / Monthly (user - 5 GB)
Startup details
Country
Switzerland
City
Geneva
Employees
50 - 99

ProtonMail videos

ProtonMail Review - Good or Not?

More videos:

  • Review - ProtonMail Review
  • Review - Top 4 Email Services BETTER than Protonmail!

OpenSMTPD videos

DAY[0] Episode #31 - kr00k, GhostCat, and more issues from NordVPN, Samsung, OpenSMTPd

Category Popularity

0-100% (relative to ProtonMail and OpenSMTPD)
Email
97 97%
3% 3
SMTP Server
0 0%
100% 100
Email Clients
100 100%
0% 0
Enterprise Communication
100 100%
0% 0

User comments

Share your experience with using ProtonMail and OpenSMTPD. For example, how are they different and which one is better?
Log in or Post with

Reviews

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

ProtonMail Reviews

  1. A great product made by a great team

    Protonmail is the best secure email solution period, other products in the suite such as ProtonVPN and hopefully soon Drive and Calendar will finally make it the perfect Gsuite alternative.

    👍 Pros:    Encryption|Easy to use|Excellent features|Easy integration
    👎 Cons:    None

10 Best Alternatives to Microsoft Outlook to Try in 2023
It's hard to find a more trustworthy email service provider than ProtonMail. It's built for people who want to be sure that no one is accessing their data, and that's where it clearly comes out ahead compared to Outlook, which is owned by Microsoft. But when choosing ProtonMail, you may miss some of the key features and integrations offered by Microsoft and its line of apps.
Source: mysignature.io
11 Top Outlook Alternatives to Try
With ProtonMail, your email is even protected from ProtonMail. Your data is stored using zero-access encryption, so ProtonMail itself doesn’t know your password and can’t decrypt your emails.
Source: kinsta.com
CTemplar Email Shutting Down – Try These Alternatives
As we noted in the ProtonMail review, every email provider must comply with government laws and regulations in the country in which it operates. ProtonMail sells itself as a private email service, but ProtonMail also logs users for various government entities.
The BEST Email Hosting Providers for Small Business in 2021
ProtonMail is an easy-to-use, secure email service with built-in end-to-end encryption and state-of-the-art security features. ProtonMail put an emphasis on internet security and its goal is to build an internet that respects privacy and is secure against cyberattacks. They are a company committed to developing and distributing tools that are essential to the protection of...
ProtonMail Compares Apple to Mafia, Says App Was Forced Into In-App Purchases in 2018
Apple apparently told ProtonMail "out of the blue" that it was required to add an in-app purchase option to stay in the ‌App Store‌. Similar to the situations with HEY and Wordpress earlier this year, ProtonMail had a mention of paid plans in the app, which prompted Apple to ask for the same subscription options to be offered via in-app purchase.

OpenSMTPD Reviews

Best Free and Open Source Alternatives to Microsoft Exchange Server
OpenSMTPD is an implementation of the server-side SMTP protocol, with some additional standard extensions. Its design goals include security, reliability, ease of configuration, and support for common use cases.

Social recommendations and mentions

Based on our record, ProtonMail seems to be a lot more popular than OpenSMTPD. While we know about 414 links to ProtonMail, we've tracked only 2 mentions of OpenSMTPD. 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.

ProtonMail mentions (414)

  • Email username
    You might want to consider getting a domain name of your own and then get email hosting which will allow you to set up your email in the way you want. If you don't want to have to manage and pay for domain name and email hosting, you may try premium email services like Space Email, Proton Mail etc. With then you'll definitely be able to get a username/email address of your choice. Source: 6 months ago
  • How to Force Current Session Logout - Answered
    I closed all Proton Mail tabs and navigated to protonmail.com and a cleared out login area was shown. Without checking the "keep me logged in", I entered my credentials and was prompted for my 2FA info. I entered that and it worked. Source: 8 months ago
  • help
    Can I add my gmail account to my proton mail account so I can send emails and choose betwen my gmail.com email or my protonmail.com email account? Im not talking about the easy switch feature btw. Source: 9 months ago
  • Ask HN: Gmail Alternatives
    I hear ProtonMail[1] is good, especially for your needs. [1]: https://protonmail.com/. - Source: Hacker News / 9 months ago
  • Which do you use? @protonmail.com, @proton.me or @pm.me?
    Protonmail.com for my primary, though really, simplelogin.com when I sign up at a site. Source: 11 months ago
View more

OpenSMTPD mentions (2)

  • Has anyone setup a Linux based internal only smtp relay?
    I've had something of the same experience with Postfix, u/0x29aNull. Check out OpenSMTPD. It is lightweight and standards compliant. I know that there are packages for Debian and Alpine Linux. There may also be ones for Fedora/RHEL derivatives. I use it in my environment on OpenBSD. Source: about 1 year ago
  • DKIM Migration: Rpamd instead of DKIMproxy out on OpenBSD / OpenSMTPD
    When I installed Rspamd with on OpenBSD / OpenSMTPD the other day, DKIMProxy out (dkimproxy_out daemon), which had been got via OpenBSD Ports package system, was used to add DKIM signatures to mails in order to improve security on emails. - Source: dev.to / almost 3 years ago

What are some alternatives?

When comparing ProtonMail and OpenSMTPD, you can also consider the following products

Tutanota - Get your encrypted mailbox for free.

Postfix - Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.

Zoho Mail - Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.

sSMTP - sSMTP is a simple MTA to deliver mail from a computer to a mail server.

Gmail - Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.

Exim - Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.