Best tips to avoid emails going to spam

Boost Inbox Logo Maria Oscar
January 29, 2024
how to avoid emails going to spam

You spent hours crafting the perfect email campaign, personalized just right for your audience. You hit send with smug satisfaction, ready to watch engagement skyrocket. But then the dreaded silence hits. Where are the opens? The clicks? Oh no, your emails are languishing in the spam folder, banished to digital purgatory.

Fear not, email warrior! Boost Inbox is here to help you slay the spam filter beast and land your messages squarely in the inbox. Today, we'll equip you with top-tier tips to keep your emails out of the junk abyss and maximize your campaign's reach.

What is an email spam filter and how does it work?

Think of email spam filters as vigilant inbox bouncers, scrutinizing every incoming message with suspicion. They scan for red flags like suspicious sender addresses, spammy keywords, and unsolicited bulk emails. Trigger too many, and your perfectly crafted email gets thrown out without a second glance.

How to avoid email going to spam

Now, let's get down to business. Here are your secrets to email inbox domination:

Permission is Power: Build an Opt-in Army

Spam filters love permission. Never, ever buy or rent email lists. Instead, nurture a list of subscribers who explicitly said, "Yes, please spam me (with awesome content, of course!)." Double opt-in is your friend – make sure new subscribers confirm their interest to filter out accidental signups.

Sender Reputation: The Digital ID That Matters

Think of your email sender name as your online reputation. Avoid shady domains or generic names. Use your brand name or a clear identifier related to your email content. Consistency is key – stick to the same sender name to build trust with email servers.

Subject Lines: Intrigue, Don't Alarm

"OMG You Won't Believe This!" might grab attention, but it also screams spam. Craft clear, concise subject lines that accurately reflect your email content, using relevant keywords without sounding gimmicky. Avoid ALL CAPS, excessive exclamation points, and overused spammy words like "free" or "urgent."

Content is King (and Queen): Authentic and Engaging

Spammy content reads like a telemarketer's script. Ditch the forced sales pitches and robotic language. Write your emails like you're talking to a friend, offering valuable information, entertaining stories, or helpful tips. Personalize your message whenever possible, and avoid excessive formatting or unnecessary attachments.

List Hygiene: Spring Cleaning for Your Inbox

Inactive subscribers are spam filters' best friends. Regularly audit your email list and remove inactive or invalid addresses. This boosts your sender reputation and ensures your emails reach engaged recipients who actually want to hear from you.

Unsubscribe with Grace: Let Them Go Without Grudge

Make it easy for people to unsubscribe. Include a clear, easily accessible unsubscribe link in every email. Remember, a graceful exit beats a spam report any day.

Authentication: Add a Layer of Trust

Email authentication protocols like SPF, DKIM, and DMARC add a digital handshake of trust between you and email servers. They verify your sender identity and help prevent email spoofing, boosting your deliverability rates.

Analyze and Adapt: Know Your Inbox Enemy

Open rates, click-through rates, and spam complaints are your battleground intel. Use email analytics tools to track your performance and identify areas for improvement. Adapt your content, subject lines, and sending frequency based on data to constantly refine your strategy.

Warm Up Like a Pro: Avoid the Inbox Cold Shoulder

Sending a sudden blast of emails is a surefire way to trigger spam filters. Gradually increase your sending volume over time, starting with smaller batches and gradually working your way up. Boost Inbox can help you warm up your email addresses safely and effectively, ensuring a smooth transition to high-volume campaigns.


By following these tips and leveraging the power of Boost Inbox's email warmup tools, you can master the art of inbox-worthy email marketing. No more spam folders, no more engagement ghost towns. Just happy recipients, skyrocketing open rates, and a thriving email marketing campaign.
So, what are you waiting for? Take control of your email destiny today. Try Boost Inbox and say goodbye to spam.

What to read next

Yes, Boost Inbox is designed to cater to businesses of all sizes and industries.

Absolutely! Boost Inbox is compatible with most major email service providers.

The warmup process duration may vary depending on your email volume, but it typically ranges from a few days to a couple of weeks.

Yes, Boost Inbox offers dedicated customer support to assist you throughout the warmup process.

While it's possible, it's best to start the warmup process from the beginning with Boost Inbox for optimal results.