I'm investigating a possible incident where a user appeared to receive an email from their own account. I'm trying to determine whether the message was spoofed or whether…
I'm investigating a message that appeared to come from a user's mailbox and was addressed to that same user. The Microsoft 365 message trace shows the sender and…
I'm having an issue where one of our users is experiencing problems with email delivery. They've received a Non-Delivery Report (NDR) stating that the remote server returned '550…
Hey everyone! I'm in search of a Linux or FreeBSD based SMTP proxy application that can help me with forwarding email notifications from several IoT devices. These devices…