WarmupInbox Author

Daniel Polacek

Daniel has been an online marketing enthusiast since high school and enjoys crafting easy-to-digest blog posts that help people better understand how email marketing and the overall warmup process works.

Articles by Daniel Polacek

What Is Email Warm Up & Why It Matters (+ Best Practices)

Email warm up is a process that improves the reputation of the email account. Learn how to boost your email deliverability for your cold email campaigns!
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Email Alias: Definition & Uses

An email alias is an email address you create under a mail server that forwards all incoming mail to another email address you own and control.
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How Many Cold Emails to Send Per Day

How many cold emails is too many? Let's find out the answer!
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The best SendGrid IP warmup schedule

Warmup schedules are used to plan out the number of emails you send each day to clients through an IP address that’s new or has a damaged reputation. Here's what you need to know.
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Interserver Blacklist: What Is It and How To Remove Yourself From It?

The Interserver Blacklist is a DNS-based Blacklist that lists single IP Addresses or entire ranges. Learn how to remove yourself from it!
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Spamhaus Zen Blacklist: What Is It and How To Remove Yourself From It

Spamhaus Zen Blacklist is a common blocklist feared by email marketers. Here, we'll cover what it is and how to remove yourself from it.
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Backscatterer Blacklist: What Is It and How To Remove Yourself From It?

Did you end up on a Backscatterer Blacklist? This post will help you understand what it is, how it works, how to get yourself out of it and how to avoid it.
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Email Error 550: High Probability of Spam

In this blog post, we will therefore cover solutions to the common 505 error.
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RATS-Spam Blacklist: What Is It and How To Remove Yourself From It

RATS-Spam Blacklist is a common blacklist in the email marketing niche. In this blog post, we'll explore the topic.
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Sorbs DUHL Blacklist: What Is It and How To Remove Yourself From It?

Sorbs DUHL is quite a small, yet still active blacklist. If you want to learn more about it (and how to avoid it), continue reading...
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