Software Alternatives & Reviews

OpenSMTPD VS Warmbox.ai

Compare OpenSMTPD VS Warmbox.ai and see what are their differences

OpenSMTPD logo OpenSMTPD

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with...

Warmbox.ai logo Warmbox.ai

Warm up your cold email inbox, and never land in spam anymore!
Visit Website
  • OpenSMTPD Landing page
    Landing page //
    2019-03-05
  • Warmbox.ai Landing page
    Landing page //
    2021-03-01

Warmbox help you to warm up your cold email inbox to never land in spam anymore πŸŽ‰

How does it work? Warmbox algorithm interacts automatically with your inbox, as humans, in order to increase your deliverability. Connect Warmbox to your inbox in seconds. Warmbox will send emails from your inbox. Remove these emails from the Spam folder. Open your emails. Bookmark your emails. Reply to your emails. Your inbox gets warm. Your emails don't land in spam anymore.

Want to give a try? πŸ‘‰ https://warmbox.ai/

OpenSMTPD

Categories
  • SMTP Server
  • Email
  • MTA
  • Email Delivery
Website opensmtpd.org
Pricing URL-
Details $
Platforms
-
Release Date-

Warmbox.ai

Categories
  • Email
  • Email Warming
  • Email Warm Up
  • Email Deliverability
Website warmbox.ai
Pricing URL Official Warmbox.ai Pricing
Details $freemium $9.0 / Monthly
Platforms
Email Warm Up Service Google Workspace Inbox Gmail / Gsuite Inbox Office 365 Outlook Amazon SES Mailgun Zoho Yandex iCloud Sendgrid Yahoo Aol Any Inbox With SMTP
Release Date2020-06-18

OpenSMTPD features and specs

No features have been listed yet.

Warmbox.ai features and specs

  • Email warmup: Automated interactions Auto-Remove from Spam Auto-Reply to emails Mark as favorite emails Spam score monitoring AI Generated emails (GPT-3) Growth, Flat or Random warm-up Fully custom warm-up Warm-up Schedule Detailed analytics Private inboxes network Reporting & Dashboard
  • Inbox integrations: Gmail - Gsuite inbox (OAuth) Outlook - Microsoft 365 Yahoo Inbox iCloud Inbox AOL - Verzizon Inbox Yandex Inbox Zoho Inbox Sendgrid Inbox Sendinblue Inbox Mailgun Inbox Amazon SES Inbox Any other Inbox (SMTP)
  • Account & services: Multi-account for agencies Team members In-app Onboarding Third-party app Password Detailed Help Center Live chat support Product updates Blog resources Affiliate program Securised payment

OpenSMTPD videos

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

Warmbox.ai videos

Warm-up your cold email inbox. And never land in spam anymore.

Category Popularity

0-100% (relative to OpenSMTPD and Warmbox.ai)
SMTP Server
100 100%
0% 0
Email
8 8%
92% 92
Email Marketing
0 0%
100% 100
MTA
100 100%
0% 0

User comments

Share your experience with using OpenSMTPD and Warmbox.ai. 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 OpenSMTPD and Warmbox.ai

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.

Warmbox.ai Reviews

  1. Best warm-up tool

    Using Warmbox since few months and work like a charm! Got no email landing in spam now, recommend at 100%

    Thanks to the team πŸŽ‰

    πŸ‘ Pros:    Efficient|Simple but powerful|Affordable price
  2. #1 Email warm-up tool

    The best tool around after trying most of email warm-up software!


23 Best Cold Email WarmUp Tools in 2022 (Free + Paid)
Warmbox is a standalone email warming strategy service with excellent user interface and user experience.it’s a paid version, once you connect your inbox to Warmbox, it will automatically send emails from your email address to its network of +10000 mailboxes. Warmbox automatically recommends the option that best suits you among its 4 warming up way. You can change the...
Source: inguide.in
Top 10 of the Best Email Warm Up tools in 2022
Once you connect your inbox to Warmbox, it will automatically send emails from your email address to its network of +10000 mailboxes. Warmbox automatically recommends the option that best suits you among its 4 warming up recipes. You can change the sending method and increase the number of emails you want to send at any time.
Source: mailmeteor.com
7 Best Cold Email Warm-up Software
Out of all warm-up tools, Warmbox.ai is the clear winner from warming up your email using 10,000 inboxes to raise your email reputation, writing a human mimicking email using GPT-3, with an intelligent dashboard that helps you to track and monitor. Warmbox integrates with almost all email service providers from Gmail to Zoho mail. You can check out Warmbox.ai by clicking the...

Social recommendations and mentions

Based on our record, Warmbox.ai should be more popular than OpenSMTPD. It has been mentiond 4 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.

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 / over 2 years ago

Warmbox.ai mentions (4)

  • 51% of emails are landing in Spam and never reach your leads!
    I'm really happy to announce to you that I'm launching a new product around email deliverability: Warmbox.ai, one of the most advanced email warm-up tool that helps you to never land in spam. On ProductHunt, today! Source: almost 3 years ago
  • I created an email checker tool in 2 weeks (Mailook) to help people to fix their email deliverability and prepare the launch of my main product on PH: Warmbox (we are live today! 😻)
    By the way, I'm really happy to announce to you that we're launching a new product around email deliverability: Warmbox.ai, the most advanced email warm-up tool that helps you to never land in spam. On ProductHunt, today! It integrates natively the Mailook feature for, so you can check your deliverability for free inside it! Source: almost 3 years ago
  • Warm-up your inbox and never land in spam anymore - We launched Warmbox on PH 😻
    Hello guys! πŸ˜ƒ We are launching on PH today Warmbox.ai to help anyone to warm-up your inbox and never land in spam anymore! Source: almost 3 years ago
  • Best email automation software
    Interested in warmbox.ai bro. Did you try its alternatives? Mailwarm or mailreach? Source: about 3 years ago

What are some alternatives?

When comparing OpenSMTPD and Warmbox.ai, you can also consider the following products

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

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.

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

MailReach.co - The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

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

Mailwarm - The email warm-up tool.