Moving DMARC from p=none to p=reject
Your DMARC record has said p=none for two years. Read the reports, fix alignment for every sender, then step to quarantine and reject without losing mail.
#dkim
Filtering by topic #dkim · clear
Send mail from your self-hosted apps
Send mail from self-hosted apps without running a mail server. One SMTP relay at host level, SPF, DKIM and DMARC, and a fix for blocked port 25.