Category: DNS & Domains
DNS & DomainsDNS changes that affect email routing can cause mail to bounce or be delivered inconsistently if you're not careful. Learn the right sequence — TTL reduction, staged MX changes, and authentication record management — to cut over without downtime.
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DNS & DomainsDNS configuration errors are behind most email delivery failures. From broken MX records to SPF lookup overflows and DKIM key mismatches, here are the mistakes that show up most often and exactly how to diagnose and fix them.
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DNS & DomainsDomain reputation determines whether your email reaches the inbox or disappears — and it can erode quietly before you notice. Here's how to monitor your sending domain's health and protect it before problems develop.
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DNS & DomainsBackup MX records made sense when self-hosted servers had real downtime risk. In 2026, the calculus has changed — cloud email infrastructure handles redundancy internally, and a misconfigured backup MX can introduce new spam vulnerabilities.
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