Why Your Emails are Going to Spam
Blog post from Resend
Email communication is akin to traditional mail delivery, with inbox providers serving as digital mailbox services and companies like Resend acting as postal carriers to deliver emails effectively. To ensure successful email delivery, best practices include maintaining clear sender information, offering unsubscribe options as required by the CAN-SPAM Act, and monitoring content to comply with regulations. Emails can be marked as spam due to factors like poor sender reputation, high spam complaints, high bounce rates, and sudden volume spikes. Authentication through SPF, DKIM, and DMARC records is crucial for sender verification, as inbox providers use these to validate email authenticity. Content relevance, including consistent messaging and aligned links, is important to avoid triggering spam filters. Tools like Google Postmaster Tools and Yahoo! Sender Hub offer insights into sender reputation and email handling, while services like Google Safe Browsing and Spamhaus help protect against malicious links and maintain email deliverability. Recovering from a dip in email reputation involves auditing authentication, cleaning mailing lists, reviewing content, and gradually increasing email volume, with expert guidance available from deliverability specialists.