Cybercriminals found a way to send millions of “perfectly spoofed” phishing emails thanks to a vulnerability in Proofpoint’s email relay servers. Experts from Guardio Labs revealed the ...

Guardio Labs helped discover the phishing campaign and security gap in Proofpoint's email relay servers. In May 2024, they notified the firm and helped them fix it. The EchoSpoofing campaign To ...

I posted here some time back about linux email servers. I now would like to ask about building a mail relay for exchange 2003. It seems that the two major mta's for linux are postfix and qmail. I ...

“All email messages are deleted from our relay servers after they’re delivered to you, usually within seconds,” the iPhone maker says.

Guardio dubbed the campaign EchoSpoofing – because the spam was "echoed" from email relay servers owned and operated by Proofpoint itself.

If you setup relaying from certain IP addresses, that's probably OK, but don't allow relaying from email addresses/domains. Spammers can figure out that you allow this and will abuse their server ...

It is, in fact, a huge leap forward in privacy thanks to features like iCloud Private Relay and Hide My Email.

Threat actors are hacking Microsoft Exchange servers using ProxyShell and ProxyLogon exploits to distribute malware and bypass detection using stolen internal reply-chain emails.

This ‘EchoSpoofing’ targeted vulnerabilities in Proofpoint's Secure Email Relay Solution to pose as companies like Disney, IBM, Nike, and Best Buy and send their customers legit-looking emails.

Nostr, Notes and Other Stuff Transmitted by Relays is a protocol enabling censorship resistant communications across a number of unrelated relay servers used to host and serve messages to users.

Don’t Give Your Email to Strangers—Use a Decoy Address Instead In some situations, masking your real email address is a smart move. Here’s what to know about setting it all up.

There are a growing number of services that give out disguised email addresses and relay any messages to your actual address. Experts say this can be a powerful tool to safeguard privacy and ...