Email deliverability is the single most important technical factor in your email program. If your emails don’t reach inboxes, nothing else matters. Here’s what Jewish organizations need to know about keeping their messages out of spam.
Authentication: The Foundation
Three DNS records are essential for email deliverability:
- SPF (Sender Policy Framework): Tells receiving servers which IP addresses are authorized to send email from your domain. Without a correct SPF record, your emails are likely to be filtered.
- DKIM (DomainKeys Identified Mail): A cryptographic signature that proves your emails haven’t been tampered with in transit. Major ISPs increasingly require DKIM for inbox placement.
- DMARC (Domain-based Message Authentication): A policy that tells receiving servers what to do when SPF or DKIM fails. Start with a monitoring policy, then move to enforcement.
IP Reputation
Your sending IP address has a reputation score with every major ISP. If previous senders on that IP sent spam, your emails will be penalized. This is why shared IP pools on generic email providers can hurt Jewish organizations — you’re sharing reputation with thousands of senders whose content and practices may differ significantly from yours.
Dedicated IPs, available on KosherEmail’s Business and Enterprise plans, give you full control over your sending reputation.
List Hygiene
Hard bounces damage your sender reputation. Clean your list regularly by removing invalid addresses, re-engaging inactive subscribers before unsubscribing them, and honoring unsubscribe requests immediately. KosherEmail handles bounce and unsubscribe management automatically.
Content Considerations
Spam filters evaluate message content alongside technical factors. Avoid spam trigger words, maintain a healthy text-to-image ratio, and always include a physical address and unsubscribe link. For kosher content specifically, use a provider whose filters are calibrated for Jewish community communications. Learn about KosherEmail’s content-aware filtering.