Mail.com can work for job offers if the inbox is professional, stable, and actively monitored. Here is when it makes sense, where it creates friction, and how to protect your privacy without missing important paperwork.
Mailfence can work for job referrals if you use a professional, stable address and monitor it closely, but referrals depend on trust and follow-through, so presentation and reliability matter more than privacy branding alone.
Mailfence can work for job offers if you need a separate, privacy-conscious inbox, but the offer stage demands reliability, fast replies, and secure document handling.
Facebook Messenger can work for low-stakes job referral intros with people you already trust, but it is usually smarter to move the real referral details to email or LinkedIn for privacy, clarity, and follow-up.