I need help with stopping email Spoofing.
Currently I have a website that sends out registration emails to peoples' emails when they register on my website. I'm using a gmail account as a relay to send these emails. Someone is spoofing my gmail account and my account gets blocked because of this. i want to stop this.
I believe I need these to stop it:
I believe I'm using Post Fix as my email server software.
Who can help me with this?