UniOne Blog

Blog
For beginners
Send Email Using Firebase Function: Step-by-Step Guide
Learn how to send emails using a Firebase Function with our guide.
Alexey Kachalov
26 june 2026, 08:387 min
How to Send OTP Emails with UniOne: Fast Integration via API or SMTP
Vitalii Piddubnyi
20 may 2026, 09:4310 min
Casino Marketing Strategy: Complete Email Guide for Online Casinos
Alexey Kachalov
14 may 2026, 17:169 min
Email Marketing for Beginners: A Complete Step-by-Step Guide
Andrew Dyuzhov
13 may 2026, 10:3510 min
13 Best Campaign Monitor Alternatives For Transactional and Marketing Emails
Valeriia Klymenko
11 may 2026, 11:4915 min

Recently published

Blog
For beginners
Case Study: How to Increase the Conversion Rates by Choosing the Right Solutions
As a partner of the Customer Data Platform (CDP) Institute, UniOne studies our users’ unique experie
Alexey Kachalov
21 december 2022, 09:001 min
Blog
For beginners
What Are They Used For?
An email tag is a short label that helps you organize and categorize your messages. You can use them
Alexey Kachalov
20 december 2022, 10:008 min
Blog
For beginners
Seed Lists: What Are They for and How to Use One?
Email marketing can generate a high return on investment, but there are many things you need to know
Valeriia Klymenko
15 december 2022, 10:005 min
Blog
For beginners
How to Encrypt Email: a Guide for Beginners
An email that isn't encrypted is like a postcard: malicious actors can intercept it easily. Hence, i
Denys Romanov
13 december 2022, 09:0010 min
Blog
For beginners
A Guide to "Thank You for Your Business" Emails: Tips and Examples
Any business needs to be smart about its marketing, which means finding ways to improve its reputati
Valeriia Klymenko
08 december 2022, 10:0310 min
Blog
For beginners
Best Practices for Email Security of All Times
Digitization is spreading around the globe and making it easier for people to communicate and coordi
Denys Romanov
06 december 2022, 10:369 min
Blog
For beginners
Emails in the Cookieless World
Artificial intelligence is becoming ingrained in our lives as digitization spreads to all sectors. H
Alexey Kachalov
05 december 2022, 09:411 min
Blog
For beginners
Reporting Scam Emails: How and Where
Scam emails are one of the Internet’s biggest problems. The web provides a venue for dispersing info
Yurii Bitko
01 december 2022, 10:038 min
Blog
For beginners
Holiday Email Marketing Strategies: What and When
A major holiday season is coming, and it’s a time when people expect to receive lots of holiday-them
Valeriia Klymenko
29 november 2022, 09:536 min
Blog
For beginners
The Explanation of Magic Links and How They Work
The average email address is linked to dozens of accounts on different platforms. Assuming the avera
Denys Romanov
24 november 2022, 10:006 min
Blog
For beginners
What Are Autoresponders and How to Use Them
An email autoresponder is a tool that automates email replies. It sends out an automatic email (also
Yurii Bitko
22 november 2022, 09:137 min
Blog
For beginners
Why Email Open Rates are Important and How to Reach Good Open Rates?
It’s one thing to send email campaigns and another for the recipients to open the emails. That’s why
Alexey Kachalov
17 november 2022, 10:009 min
Blog
For beginners
What Is an Email Marketing Strategy: a Complete Guide
Email is one of the oldest and most widely-used forms of digital communication. With over 4 billion
Valeriia Klymenko
15 november 2022, 09:3013 min
Blog
For beginners
The Easiest Way to Grow Your Business with Email Marketing
Email marketing is a form of direct marketing that involves promoting your products via email. It’s
Denys Romanov
10 november 2022, 10:0014 min
Blog
For beginners
Onboarding Emails for Easy Engagement of New Customers
Onboarding emails are the emails you send to a user immediately after they sign up for your product
Alexey Kachalov
08 november 2022, 10:007 min
Blog
For beginners
What are Honeypot Email Addresses, and How to Avoid Them
Spam is a prominent problem on the internet. Spammers always try to flood random or targeted email a
Yurii Bitko
03 november 2022, 09:548 min
Blog
For beginners
How to Check My Email Sender Reputation? Tools and Tips
Behind every great campaign is a solid sender reputation. It affects whether your emails will reach
Denys Romanov
01 november 2022, 10:038 min
Blog
For beginners
What is CRM-ESP Integration and How Can It Help My Business?
Anyone familiar with email marketing knows so many acronyms associated with the sector: SEO, CPC, KP
Alexey Kachalov
27 october 2022, 09:239 min
Blog
For beginners
Business Email: Examples and Templates
People have been predicting the decline of email marketing for years. However, it has only grown str
Yurii Bitko
25 october 2022, 10:3725 min
Blog
For beginners
What is a Transactional Email and What is It Used for?
Remember when you created an account on a website and received an email to confirm your registration
Alexey Kachalov
20 october 2022, 10:5417 min
Blog
For beginners
Personalization in Email Marketing: What Is It and How Does It Work?
Have you ever seen an email in your inbox starting with "Dear [your name]"? Such an email will likel
Valeriia Klymenko
18 october 2022, 14:229 min
Blog
For beginners
Email Authentication: SPF, DKIM, and DMARC
Email authentication technologies — what are they? Learn about SPF, DKIM, and DMARC settings for ema
Alexey Kachalov
13 october 2022, 11:136 min
Blog
For beginners
Promotional Emails: Examples, Templates, and Idea
Promotional emails are emails businesses use to advertise their products and services.
Valeriia Klymenko
11 october 2022, 12:5819 min
Blog
For beginners
Evolution of Marketing Emails’ Delivery: From Mainframe To CDP
Just as it happened with voice communications, the earliest attempts at electronic messaging were ca
Alexey Kachalov
04 october 2022, 10:055 min
Blog
For beginners
Guide on Dark Mode in Email
Having caused quite a stir in the tech industry, especially in UI/UX departments across companies, d
Valeriia Klymenko
08 september 2022, 11:509 min
Blog
For beginners
Domain reputation or IP reputation: Email Sending Reputation
Mailbox providers and reputation services analyze the reputation of the sender’s IP address and doma
Alexey Kachalov
06 september 2022, 00:009 min
Blog
For beginners
SMTP Codes and Errors Messages
Sometimes your emails don't get delivered, and you need to figure out why. This is where SMTP codes
Alexey Kachalov
30 august 2022, 12:567 min
Blog
For beginners
7 Reasons Why Your Email Gets Blocked
You may have run into situations when your legitimate transactional or promotional emails are blocke
Valeriia Klymenko
25 august 2022, 09:296 min
Blog
For beginners
Guide on Responding to Your Emails
You often respond to emails from coworkers and customers, at work or while you're away from the offi
Alexey Kachalov
23 august 2022, 10:005 min
Blog
For beginners
IP Reputation - What Is It and How It Checks?
If you want to monitor or improve your email deliverability, one of your first priorities should be
Alexey Kachalov
18 august 2022, 13:058 min
Blog
For beginners
Images in Emails: How to Embed Images in HTML?
Attractive images are a vital component of advertising strategy: your email campaign will be more ex
Valeriia Klymenko
16 august 2022, 09:174 min
Blog
For beginners
What Is Email Validation and Why Is It Important?
Valid email addresses are the basis of any successful email marketing campaign. This makes it necess
Vitalii Piddubnyi
12 august 2022, 07:085 min
Blog
For beginners
How Spam Traps Affect Your Email Deliverability
Spam traps are all over the internet, waiting for a slight mistake or a series of destructive behavi
Alexey Kachalov
09 august 2022, 10:172 min
Blog
For beginners
Email Invoice - Use Free Template
Many small businesses and freelancers struggle with belated payments, and while it's not a magic bul
Vitalii Piddubnyi
05 august 2022, 14:572 min
Blog
For beginners
Noreply Emails: Why Are They Bad for You?
A noreply email address typically looks like noreply@yourdomain.com. The mailbox name implies that w
Valeriia Klymenko
28 july 2022, 09:012 min
Blog
For beginners
Bounced Emails — What to Do about Them?
The term “bounced email” may be taken quite literally: it's a situation when an email is not deliver
Alexey Kachalov
26 july 2022, 14:592 min
Blog
For beginners
What Is a Customer Data Platform (CDP)?
A customer data platform (CDP) is a software system that creates a comprehensive customer database t
Valeriia Klymenko
23 july 2022, 20:052 min
Blog
For beginners
Email Length & Attachment Size Limit or Email
Some important tips to optimize your email
Yurii Bitko
20 july 2022, 12:437 min
Blog
For beginners
Email Lists Signup
Use these newsletter signup examples to power up your email list building strategy.
Valeriia Klymenko
18 july 2022, 15:445 min
Blog
For beginners
What is an Email Service Provider (ESP)?
Read how to use business ESP for your email marketing in our guide.
Vitalii Piddubnyi
31 may 2022, 15:537 min
Blog
For beginners
What Does Gmail Automated Unsubscribe Mean for Your Business?
Learn how to unsubscribe from emails on Gmail with auto-unsubscribe features.
Alexey Kachalov
20 may 2022, 14:058 min
Blog
For beginners
Why Do Emails Get Delivered to Gmail's Promotions Tab?
In this guide, you learn how Gmail sorts the Promotions tab.
Alexey Kachalov
17 may 2022, 14:518 min
Blog
For beginners
Using Emoji & Symbols in Your Email and Subject Lines
Learn about emojis and symbols in email. Why are they important?
Valeriia Klymenko
13 may 2022, 10:1410 min
Blog
For beginners
Animated GIFs in Emails
How to add animated GIFs to an email?
Alexey Kachalov
10 may 2022, 14:097 min
Blog
For experts
What You Need to Know About Email Subdomains
Learn about email subdomains and how to use them properly.
Denys Romanov
06 may 2022, 10:237 min
Blog
For experts
What Is AMP for Email and How It Works?
Learn how AMP works from examples.
Alexey Kachalov
03 may 2022, 11:508 min
Blog
For beginners
A Guide to the List-Unsubscribe Header in Email
Learn how the list-unsubscribe header works and how to set it up for your campaigns.
Valeriia Klymenko
01 march 2022, 16:466 min
Blog
For beginners
What is an Email Blast?
What is mass email, and how effectively use this marketing strategy?
Vitalii Piddubnyi
25 february 2022, 15:495 min
Blog
For beginners
What Is an Interactive Email?
Create an interactive email. Make emails better.
Valeriia Klymenko
22 february 2022, 15:257 min
Blog
For beginners
Guide to Email Laws and Regulations by Country
Know the difference between email rules in countries.
Denys Romanov
18 february 2022, 15:306 min
Blog
For beginners
Email Blacklists - What You Need to Know
What is an email blacklist is, and how can you avoid them?
Vitalii Piddubnyi
15 february 2022, 14:2911 min