Topic
Deliverability
Practical guidance on reaching the inbox: sender reputation, bounce and complaint handling, blocklists, throttling, and what mailbox providers actually reward.
35 articles
- 7 min readDeliverability
SMTP2GO Review (2025): Pros, Cons, and Best Alternatives
While SMTP2GO offers these benefits, there are several alternatives available in the market that provide similar services with their own unique features and advantages.
Jody Gail Arsolon
- 8 min readDeliverability
Apple’s Private Relay Email Addresses (@privaterelay.appleid.com): What They Are & How They Work
Apple has built its reputation on strong privacy and security. They’ve introduced tons of features over the years to keep your personal information safe.
Jody Gail Arsolon
- 5 min readDeliverability
Email Not Sending?That's sad, But Here’s How to Fix It
Emails are a big part of how we communicate—whether it's for work, staying in touch with friends, or sending out a newsletter. But what if you press "Send" and it doesn't go through?
Jody Gail Arsolon
- 9 min readDeliverability
Why Do We Call Unwanted Emails 'Spam'?
When you hear the word "Spam," you might think of a can of processed meat that some people love and others avoid. But for many of us, the word instantly brings to mind annoying junk emails filling up our inboxes.
Jody Gail Arsolon
- 29 min readDeliverability
17 Best Email Verification Tools for Marketers in 2025
Explore the 15 best email verification tools for 2025 to boost deliverability, reduce bounce rates, protect sender reputation, and enhance campaigns.
Jody Gail Arsolon
- 9 min readDeliverability
Why Email Deliverability Matters: How Google Postmaster Tools Can Help
Google Postmaster Tools (GPT) is a free tool from Google that gives email senders key insights into how their messages perform, especially on Gmail.
Jody Gail Arsolon
- 7 min readGeneral
ActiveCampaign Review (2025): Pros, Cons, and Alternatives
Recognized as the Best Email Marketing Tool for 2025, ActiveCampaign combines strong marketing features with seamless automation, making it a popular choice for businesses of all sizes.
Jody Gail Arsolon
- 26 min readEmail Infrastructure
Top 20 Best Paid SMTP Relay Service Providers - Updated 2025
Simple Mail Transfer Protocol, or SMTP, is an industry standard for sending emails. It uses appropriate authentication tools to ensure that emails are delivered to the right inboxes on time. However, the quality of your SMTP service ultimately depends on the software service provider.
Eivor
- 4 min readEmail Authentication
How to Set Up Reverse DNS (rDNS) / PTR?
Reverse DNS (rDNS) is essential for tasks like email authentication, network diagnostics, and compliance. It involves mapping an IP address back to a domain name using PTR records. Proper rDNS setup ensures secure and efficient network operations, aiding in email deliverability and troubleshooting.
Areeb Majeed
- 26 min readGeneral
Email Glossary - Updated for 2025
While sending emails you'll encounter plenty of words and acronyms, which are all essential to the email campaigns. Read our updated email glossary, updated for 2024!
Eivor
- 10 min readDeliverability
Heads Up! Updated Email Marketing Regulations for Different Countries for 2025
Email marketing regulations are in place in different countries to ensure that the recipients' right to privacy are respected. Different countries have specific laws, with the Spam Act of 2003 for Australia as an example.
Eivor
- 7 min readEmail API & Integrations
Postmark Review 2025: Pros, Cons, and Alternatives
Postmark is a leading SMTP email service provider that boasts the fastest deliverability in the business and specializes in transactional emails. Customers can choose from eight pricing packages, plus an option to use the Free Trial which allows up to 100 emails monthly.
Eivor
FeaturesCrafted for a Delightful Email Experience
Discover the products and services that help businesses manage email infrastructure, improve deliverability, and scale efficiently.
SMTP Relay
Send transactional and bulk emails through reliable SMTP infrastructure built for speed, security, and deliverability.
Email API
Integrate email delivery into your applications using powerful APIs built for flexibility, scalability, and performance.
Streams
Separate transactional and marketing traffic into isolated sending streams to protect reputation and keep critical emails fast.
Inbound Routing
Receive and route incoming emails directly into your applications using flexible automation and processing workflows.
Email Marketing
Create and deliver marketing campaigns designed to increase engagement, reach, and customer retention.
Webhooks
Receive real-time event notifications for deliveries, opens, and clicks for storage and automation workflows.
Analytics
Monitor email performance with detailed insights, reporting tools, and actionable delivery metrics in real time.
Dedicated IPs
Gain greater sending control with dedicated IPs designed for consistency, reputation, scalability, and reliability.
Developer SDKs
Build integrations faster using SDKs, code examples, and resources for modern application development.
