Comment Comment by gupi There are already mechanisms to prevent the spoofing of legit email addresses. See details below:DKIM - https://support.google.com/a/answer/174124?hl=enSPF - https://support.google.com/a/answer/33786?hl=enDmarc - https://support.google.com/a/answer/2466580?hl=enHowever, implementing needs support from your email/hosting provider. parent gupi 10 years ago
DKIM - https://support.google.com/a/answer/174124?hl=en
SPF - https://support.google.com/a/answer/33786?hl=en
Dmarc - https://support.google.com/a/answer/2466580?hl=en
However, implementing needs support from your email/hosting provider.