Configure Google Workspace for website mail relay
Introduction As per 30 May 2022, Gmail will no longer allow 3rd party apps or devices to sign in with username/password only. You will then no longer be able to
Configuring an SPF record in DNS for sending email from your website
What does SPF mean Sender Policy Framework (SPF) is a security measure to block unsolicited/unwanted email (spam). It is an email validation protocol to detect and block email spoofing (impersonating).