Founded in 2007 and based in the United States, Temp Mail is one of the earliest temporary email services, offering disposable anonymous email addresses without registration that auto-destruct after expiration to protect privacy.
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Founded in 1998 and headquartered in the UK/Luxembourg, Spamhaus is the world's largest anti-spam DNSBL organization. Its ZEN composite blocklist is queried by 3+ billion mail servers daily, making it an essential spam filtering reference for email infrastructure.
AuthSMTP is a UK-based SMTP relay specialist founded in 2004, operating for over 20 years. Starting at $8.25/month with 5 GB traffic, it offers lean and reliable outbound email forwarding for users who need SMTP relay without analytics.
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1 results shownEmail Deliverability Optimization Guide: SPF/DKIM/DMARC Configuration
Email deliverability affects whether your emails reach the inbox. This article details SPF, DKIM, and DMARC authentication configuration.