Keep emails out of the spam folder

A spa chain switches from personal Gmail accounts to a dedicated sending domain for its newsletter, sends the first campaign, and watches open numbers come back far lower than the list size suggests — because nobody set up the domain's SPF, DKIM or DMARC records first, and mailbox providers quietly routed the mail to spam or rejected it before a single client saw it land in their inbox.

Deliverability monitoring exists because this happens constantly and almost never gets explained to the business it happens to. Patri checks whether the sending domain's authentication is actually set up correctly, tracks bounce and complaint rates over time, and warns the owner in plain language — not a wall of DNS jargon — the moment a metric crosses a level that puts future sends at risk. It cannot fix a domain's authentication for the owner; it can only tell them clearly when something needs fixing.

Authentication is the single highest-leverage factor in whether email arrives anywhere at all, and it is also the one part of this product Patri genuinely cannot do for the sender. SPF, DKIM and DMARC records must be added to the DNS settings of the sending domain itself, wherever the business manages that domain, entirely outside this product. Patri checks whether those records exist and resolve correctly, treating an unauthenticated domain as a real gate — but adding the records is work only the domain's owner, or whoever manages their DNS, can do.

This is where the 2024 bulk-sender rules Gmail and Yahoo now enforce become unavoidable. Both expect proper SPF and DKIM authentication, a DMARC record, a working one-click unsubscribe, and a spam-complaint rate low enough not to trigger filtering — providers treat a rate above roughly 0.1% as a reputation event serious enough to affect delivery for every future send, not just the one that triggered it. None of this is optional at real volume, nor can it be quietly handled without the domain set up correctly.

Reputation itself is earned, not granted. It belongs to the sending domain and builds up, or erodes, through how mailbox providers observe that domain behaving over time: engagement, complaint rate, bounce rate, consistency. No tool can hand a damaged domain a good reputation; it can only report accurately on where reputation stands and warn early enough for the business to protect it, before a threshold is crossed and sends start failing quietly, the way that spa chain's campaign did.