My outgoing email keeps coming back to me as Message Delivery Failure. I believe my account has been hacked because I keep getting replies from people on emails I never sent - but they only seem to come in to my phone, not my desktop email. So it seems I have 3 problems going on here. Can someone help me with this? This is a business account. I need it functioning and clients to not be receiving odd things - but actually it's complete strangers that are receiving the weird emails from me. I got a call from a guy in Hungary yesterday that had received and email from my account! Help!! Thank you!
Much more information is required...
1) Email source - Command line email submission or CMS, like WordPress.
2) Message copy - Cut + Paste copy of a full message, where delivery failure occurred.