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Email Deliverability

Last updated on Oct 17, 2025

Get a detailed look at email deliverability in cold emailing

Hi There! 👋

In this guide, you will learn all about Email Deliverability, why it's important, and how SalesBlink ensures unmatched email deliverability for your email 📧 addresses.

Let's get some definitions out of the way first.

đŸŽ¯ What is Email Deliverability?

Email deliverability refers to the email 📧 sender's ability to successfully land their emails in the inbox of a lead. 🙎

This is crucial because, unlike emails sent to an existing contact list, cold emails 📧 are more prone to being marked as spam âš ī¸ or ignored.

One Time Tasks to Improve Email Deliverability

âš™ī¸ Ensure Technical Setup

Authenticating your emails using SPF, DKIM, and DMARC is crucial. These protocols verify your identity as a sender and are vital for cold emailing, where trust is initially low. Ensuring your technical setup is correct will help your emails bypass spam filters.

Technical Setup Guide

đŸ”Ĩ WarmUp your email senders

Use the Email WarmUp feature to boost your email deliverability. Gradually increase email sending volume to ensure emails land in Inbox.

WarmUp Email Address

Regular Email Deliverability Checklist

✅ Verify Email Addresses

Make sure to verify email addresses of leads to ensure low email bounce rate.

A higher email bounce rate typically signals spammer behaviour.

Verify Email Addresses

📄 Send text-only emails

HTML or rich text emails might be considered as promotional or spam by some Email Service Providers, try to send text-only emails especially in your first email. You can find this option while scheduling a sequence.

🤖 Use AI Spintax

Create variations of your email copies in a single click with AI Spintax Builder. Makes it much easier to refresh email copies more often.

Create Spintax

📭 Avoid tracking Open Rates

Everyone loves stats on how well their sequence is performing, but tracking open rates often signals to email service providers that email is being sent to a bulk/mass audience. Putting your emails in Spam or Promotions.

âŗ Limit Sending with Random Delays

Instead of sending cold emails 📧 all at once, adding random delays to emails can improve deliverability as ESPs consider bulk emails being sent at the same time as SPAM. Start with sending small number of emails before ramping up. You can set this up while scheduling sequence.

Learn to add Random Delays

🌆 Avoid using images and links

Especially in your first email, do not send any images or links. If you still need to send them then make sure to use Custom Domains.

â†Šī¸ Refresh Email Copies

Refresh something in your email copies weekly or fortnightly. This ensures that email service providers don't think you're spamming others with the same email copies.

📈 Keep Multiple Sequences Active

Keeping only one sequence active for an email sender will often lead to sending similar email copies from that email sender, indicating to email service providers that you might be spamming. So, try to keep multiple sequences active to ensure


By focusing on the above, you can improve the deliverability of your cold emails, making it more likely that the messages will be seen, read, and acted upon by leads. 🙎

Hope you found this help doc useful! 😊