UniOne Blog

Blog
For beginners
How to Warm Up Email Domain: The Complete Guide to Better Deliverability
Tips and tricks of warming up your sending domains for better email deliverability.
Valeriia Klymenko
23 july 2026, 10:0815 min
How to Warm Up Email Domain: The Complete Guide to Better Deliverability
Valeriia Klymenko
23 july 2026, 10:0815 min
Delivery & Inbox Placement: Why Your "Delivered" Emails Are Secretly Hitting Spam
Andrew Dyuzhov
09 july 2026, 12:2210 min
How to Send Email with SMTP: Proven Methods
Yurii Bitko
07 july 2026, 23:395 min
Email Protocols Explained: SMTP, IMAP, and POP3
Alexey Kachalov
30 june 2026, 21:357 min

Recently published

Blog
For experts
Send email in C#: All You Need to Know
Learn how to send emails in C# like a pro! Discover simple SMTP methods, handle attachments, and master email sending with practical code examples.
Vitalii Piddubnyi
16 january 2025, 11:06
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Top 7 Customer Support Platforms for SMBs in 2026
Explore the top help desk software solutions for small businesses in 2026, designed to enhance customer service, efficiency, and competitiveness.Choose the best customer service software to elevate your customer support.
Vitalii Piddubnyi
15 january 2025, 14:33
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Transactional Email Best Practices To Boost Engagement and Deliverability
Unlock the power of transactional emails and leverage industry’s best practices to enhance engagement and deliverability. Learn how to craft emails that truly resonate with your audience.
Valeriia Klymenko
08 january 2025, 09:54
Blog
For beginners
Email Address Secrets
Unlock the hidden secrets of email addresses! Discover how to decode local parts, domains, and more to gain insights, refine your email marketing strategy, improve segmentation, and boost campaign success.
Alexey Kachalov
25 december 2024, 15:15
Blog
For beginners
Why Are My Emails Not Sending? Top Reasons and Solutions to Fix Email Sending Issues
Struggling with 'why won't my emails send' issues? Discover common email sending problems and follow our advice to fix SMTP settings, server issues, and authentication errors.
Denys Romanov
18 december 2024, 14:02
Blog
For beginners
Email Workflow Automation: What Is It? How to Achieve It Using the Best Tools
Unlock the power of email workflow automation! Learn what it is, why it matters, and how to use top tools to transform your communication and boost efficiency.
Vitalii Piddubnyi
11 december 2024, 14:59
Blog
For beginners
Insurance Email Marketing Examples: Proven Strategies for Higher Customer Retention
Elevate your email marketing for insurance companies with proven strategies. Discover high-converting examples and templates to grow your client base.
Valeriia Klymenko
04 december 2024, 13:22
Blog
For beginners
In The News: Gmail To Offer A New Handy Feature
As of November 2024, Google is reportedly developing a new Gmail feature called
Alexey Kachalov
27 november 2024, 12:37
Blog
For experts
SMTP Commands At Your Fingertips: A Tutorial
Dive into SMTP's inner workings. Learn how to send emails using Postfix, explore essential commands, diagnose delivery issues, and find practical applications.
Denys Romanov
21 november 2024, 15:05
Blog
For beginners
Top 7 Mailtrap Alternatives
We reviewed the top ESP alternatives to Mailtrap. Find out which email service provider is better suited for your business.
Valeriia Klymenko
31 october 2024, 11:12
Blog
For beginners
Top 11 Constant Contact Alternatives
We reviewed the top ESP alternatives to Constant Contact. Find out which email service provider is better suited for your business.
Denys Romanov
24 october 2024, 10:30
Blog
For beginners
Host Your Own SMTP Server Or Use a Provider: Which Is Better for You?
Decide whether to host an SMTP server for your marketing campaigns in-house or use a provider. Compare one-time and recurring expenses to settle on the best email solution for your business needs.
Vitalii Piddubnyi
17 october 2024, 10:34
Blog
For beginners
14 Best Mailchimp Transactional (Mandrill) Alternatives
Find the right Mailchimp Transactional alternative for transactional emailing to scale your email capabilities with a more affordable service. Check out these 14 Mailchimp Transactional competitors in our roundup.
Vitalii Piddubnyi
19 september 2024, 11:44
Blog
For beginners
10 Best ActiveCampaign Alternatives for Businesses
ActiveCampaign is a well-known email marketing platform, but not necessarily the best choice for anyone. We review 10 best alternatives to ActiveCampaign for each type of business.
Alexey Kachalov
12 september 2024, 11:31
Blog
For beginners
8 Best Brevo Alternatives For Exceptional Transactional Email Delivery
Description: Choose the right Brevo alternative for transactional emailing and scale your email capabilities, without worrying about the cost of the service. Check out these Brevo competitors.
Denys Romanov
05 september 2024, 13:11
Blog
For beginners
14 Best SendGrid Alternatives for High-Volume Emails
Choose the right SendGrid alternative for your business and scale your email infrastructure with a reliable service for transactional emails.
Vitalii Piddubnyi
27 august 2024, 13:00
Blog
For beginners
The Secrets of E-Mail Surveys
By performing email surveys, you can receive valuable information from your customers. Check out our guide on email surveys and start getting important feedback!
Valeriia Klymenko
23 august 2024, 13:26
Blog
For beginners
Cold Email Templates That Work: Increase Conversions
Discover effective cold email templates that increase conversions and generate leads. Learn how to write compelling messages that resonate with your audience and produce results.
Alexey Kachalov
20 august 2024, 11:38
Blog
For beginners
Affiliate Marketing Email Templates: Examples That Work
Looking for new ideas for creating affiliate marketing emails? Explore unique templates that will help you create quality emails and increase conversions for your affiliate programs.
Vitalii Piddubnyi
16 august 2024, 10:03
Blog
For beginners
Cold Email Subject Line: The Road to Success
Cold emails are tricky, yet they can be the key to business success and achieve amazing results. Follow these best practices and examples to write subject lines that get your cold emails opened.
Denys Romanov
13 august 2024, 10:59
Blog
For beginners
Email Formatting: Examples & Best Practices for Success
Learn the ins and outs of email formatting with practical examples and top-notch strategies for achieving success in your email communications.
Valeriia Klymenko
06 august 2024, 10:29
Blog
For beginners
Email Marketing KPIs: A Guide to Success
Discover key performance indicators (KPIs) that will help you achieve optimal results in your email marketing campaigns. Our advice will enable you to pave the way to success.
Alexey Kachalov
02 august 2024, 12:56
Blog
For beginners
How to Secure Your Emails with ARC
Authenticated Received Chain (ARC) strengthens email security and ensures delivery by verifying integrity of relayed messages. Learn how ARC works and how it benefits your email delivery.
Alexey Kachalov
30 july 2024, 14:10
Blog
For beginners
A/B Email Testing Guide: Optimize Your Campaigns for Success
Master A/B testing to craft high-performing email campaigns that boost engagement, conversions, and ROI. Discover strategies, tips, and tools for email A/B testing success.
Denys Romanov
26 july 2024, 10:36
Blog
For beginners
SMS vs MMS: Which One to Choose
Learn the mechanisms, benefits, and limitations of SMS, MMS and OTT messaging to decide which one to use for your marketing campaign.
Valeriia Klymenko
23 july 2024, 12:28
Blog
For beginners
CTR in Email: What Is It and How To Increase It
How effective is your email marketing campaign? The click-through rate (CTR) is a crucial indicator of its effectiveness. Learn what CTR is and how to improve it.
Alexey Kachalov
19 july 2024, 10:14
Blog
For beginners
Email Throttling: The Essence, Meaning and Methods
Learn what causes email throttling and how to prevent it. Read our recommendations on avoiding email throttling and improving your deliverability.
Vitalii Piddubnyi
16 july 2024, 08:08
Blog
For beginners
Buying Email Lists: A Recipe for Disaster
Learn why buying an email list is a bad idea and master healthy ways to get email lists for your marketing campaign.
Denys Romanov
12 july 2024, 11:29
Blog
For beginners
No-Code Chatbot Builders for Small and Medium Enterprises
No-code chatbots for SMBs: The future of customer service is here. Discover the top platforms and start building your own chatbot today.
Vitalii Piddubnyi
04 july 2024, 15:22
Blog
For beginners
The Most Important Features of a CCaaS Solution for Today and Tomorrow
CCaaS: What features are essential for today and tomorrow? We explore the most important CCaaS features for enhancing customer experience and boosting business performance.
Valeriia Klymenko
04 july 2024, 10:32
Blog
For beginners
The Wonderland of Mobile App Gamification
Immerse yourself in the world of mobile application gamification! With Alice and her company, you will master the principles that will make your app as exciting as chasing a rabbit.
Valeriia Klymenko
01 july 2024, 15:48
Blog
For beginners
Booking Management Platforms: A Twain-Inspired Review
Shortlist the best hot desk booking software to find the right tool for you.
Alexey Kachalov
27 june 2024, 15:40
Blog
For beginners
SEO and Email Marketing: How Combining Both Boosts Search Engine Ranking
Boost your website's Google ranking by combining the power of SEO with email marketing. Learn how to use these strategies together in a few simple steps!
Yurii Bitko
18 june 2024, 11:56
Blog
For beginners
Best Practices for Email List Hygiene
Email list hygiene involves keeping your mailing list clean and accurate. Learn the best practices for cleaning your email list to achieve your email marketing goals!
Valeriia Klymenko
11 june 2024, 11:00
Blog
For beginners
How To Block An Email Address: The Ultimate Guide
Discover effective methods to block unwanted emails in Gmail, Yahoo, Outlook, and more. Learn how to avoid spam in your inbox. Follow our step-by-step guide from Unione!
Alexey Kachalov
07 june 2024, 12:00
Blog
For beginners
How To Send a Link by Email
Want to share links with friends, family or colleagues by email? Our guide will help you discover the right way of sending links by email.
Vitalii Piddubnyi
04 june 2024, 15:52
Blog
For beginners
How to Email a Professor: Сomplete Guide with Samples
Learn how to write a proper email to a professor with sample templates by UniOne. Utilize these email tips to inquire about grades, notify about absence from class, or schedule an appointment.
Valeriia Klymenko
28 may 2024, 09:20
Blog
For beginners
How to Create Email Groups in Gmail
How do you create and manage email groups in Gmail? Learn how to efficiently create group emails, manage contacts, and optimize team communication and collaboration.
Denys Romanov
24 may 2024, 11:03
Blog
For beginners
How to Recall an Email in Outlook, Gmail, and Yahoo: The Ultimate Guide
Did you just send an email by mistake? Don't worry. Follow these easy steps to recall an email in Outlook, Gmail, or Yahoo and prevent future mishaps. Check out the definitive guide at UniOne!
Yurii Bitko
21 may 2024, 15:28
Blog
For beginners
Webhook vs. API: What’s the Difference
An API allows software applications to communicate with each other through requests. Webhooks, acting as a streamlined API, facilitate one-way data sharing triggered by events. Learn how to choose the right one for your needs.
Valeriia Klymenko
17 may 2024, 12:58
Blog
For beginners
Email is Queued in Gmail: What Does It Mean
What does “queued email” mean in Gmail? In this article, we'll uncover the reasons why emails get queued for a long time and offer tips to avoid this.
Denys Romanov
16 april 2024, 11:32
Blog
For beginners
Snoozing emails tips: Why and How to Use it
What does Snooze mean in Gmail? Utilizing the snooze feature in Gmail helps organize your inbox. Learn how to snooze emails in Gmail and why you may need it.
Alexey Kachalov
12 april 2024, 11:11
Blog
For beginners
Your Email Is on the Dark Web — What to Do?
Just discovered your email address is on the dark web? Stay calm and follow these steps from our guide on immediate cybersecurity measures.
Valeriia Klymenko
09 april 2024, 06:56
Blog
For beginners
What Does a Flagged Email Mean?
What happens when you flag an email? Discover what flagged emails are, why they're important, and how to use email flagging to organize your workflow.
Yurii Bitko
05 april 2024, 15:01
Blog
For beginners
BCC in Email: What Does It Mean and How to Use It
What does BCC mean in email? When and how to use it effectively? Get all the answers and learn when to BCC and when not to.
Vitalii Piddubnyi
02 april 2024, 10:28
Blog
Best Ready-to-Use Feedback Email Templates
Master the art of crafting effective review request emails with our ready-to-use templates. Learn how to request customer feedback like a pro!
Valeriia Klymenko
22 march 2024, 11:11
Blog
For beginners
How to Find Business Email Addresses
How do you find a corporate email address if a business won’t publish it to avoid cluttering their inbox? Check out our tips and best practices to uncover hidden contacts and expand your network.
Vitalii Piddubnyi
19 march 2024, 13:55
Blog
For beginners
Best Review Request Email Examples And Free Templates
How to get customer reviews and request reviews from your customers? Explore our review request email examples and expert tips for crafting personalized messages to get customer feedback.
Denys Romanov
15 march 2024, 12:24
Blog
For beginners
What Is Email Spoofing?
Protect yourself from email spoofing with our expert insights. Learn about the definition, examples, and essential tips to safeguard your inbox from this deceptive threat.
Yurii Bitko
12 march 2024, 15:45
Blog
For beginners
What is a DNS SPF record?
SPF records are a type of DNS TXT record used for email authentication. Learn how to set up an SPF record to protect your email identity.
Vitalii Piddubnyi
27 february 2024, 15:42
Blog
For beginners
Sample Email for Salary Negotiations: How to Ask for More Money?
Preparing to negotiate your salary? Use our free salary negotiation email template to increase your base salary and get the pay you deserve.
Yurii Bitko
22 february 2024, 16:21