Most of those rules you will find are ridiculously logical, though, most of the time some are being ignored. We can't guarantee, but if you follow most of them, your email deliverability will sky-rock!
21 email marketing rules
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Don't buy email databases
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Don't collect open email addresses from websites
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Remove email addresses that regularly receive delivery error messages
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Don't write in capital letters
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Do not include videos, flash videos, or JavaScript in your email
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Do not embed a form in the email
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Do not include attachments
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Don't use words that spam filters respond to (for ex. 'Cash bonus', 'Free membership', 'Save up to')
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Don't use red font
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Don't make spelling mistakes
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Don't overuse keywords
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Images should not be too large or too small l to bypass spam filters
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Update and clean up your mailing list
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Try to re-engage subscribers who are inactive or occasionally active
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Use double opt-in subscriptions to bypass spam filters
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Ask subscribers to add your 'from email' to the address book
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Add an unsubscribe link to your email (gets added automatically at NetHunt)
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Don't ignore newsletter unsubscription
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Enter a familiar name in the 'Sender' field - hopefully, that will be you and your subscribers know you
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Keep your emails short
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Test emails before sending, including your mobile device
⛔ If your main domain gets flagged as spam, it can impact your regular business communication. By segregating cold outreach to a different domain, you protect the integrity of your primary communication channels.
Testing your campaign
There is one service we want to share with you to ensure your e-blasts have a high chance of reaching the recipient's inbox. Feel free to test your campaign with Mail Tester. You simply need to campaign to the email (just follow the link).
Once sent, you'll receive an email score as per screenshot:
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