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Why sending business email from a custom domain matters more than it might seem, beyond just looking more professional.
A plain-language explanation of the four DNS records that control where your email goes and whether it actually gets delivered.
What SMTP hosting actually does, and why applications and websites often need it separately from a normal email inbox.
The real, most common technical reasons legitimate email ends up in spam folders, and what actually fixes each one.
What to actually check when comparing mailbox hosting plans, beyond storage size alone.