Forwarded mail can be more trouble than it’s worth - especially when it’s done without checks, validation, or spam filtering. Typos, spamtraps, and forged senders can quickly snowball into blocklistings and delivery failures. In this second part on mail relays, we dive into the mess forwarding can cause, and what you can do to avoid it.

The post Mail relays – Part 2 | Problems with forwarded mail? appeared first on Security Boulevard.

The Spamhaus Team

Source: Security Boulevard
Source Link: https://securityboulevard.com/2025/05/mail-relays-part-2-problems-with-forwarded-mail/?utm_source=rss&utm_medium=rss&utm_campaign=mail-relays-part-2-problems-with-forwarded-mail