Hey folks, been deep in our own deliverability setup recently and a question came up from our security team that I thought this group would have real-world experience with.
We use Salesforce for our main comms and have a bunch of automated marketing flows tied to Marketo. Our main brand domain is whitelisted and performing well, but we're increasingly hearing about other companies in our space getting hit by domain spoofing—fake emails that look like they're coming from our @ourbrand.com addresses. It's not just a security issue; it can torpedo our sender reputation if those spoofed domains start blasting spam.
I'm comfortable with the basics: we have SPF, DKIM, and DMARC set up with a policy of `p=none` for reporting. We're getting those aggregate DMARC reports, but parsing them is a bit of a manual slog. What I'm trying to figure out is: **what's the operational playbook for monitoring this?**
Specifically:
- Beyond just collecting DMARC reports, are there specific tools or services you use to alert you to new spoofing attempts in near real-time?
- For those of you who've tightened your DMARC policy to `p=quarantine` or `p=reject`, how did you build confidence that legitimate traffic (like from legitimate but unconfigured third-party tools) wouldn't get caught?
- Any clever ways to tie this monitoring into a broader revenue ops or CRM dashboard? I'm imagining alerts in a Slack channel our marketing ops and sales ops teams watch.
Grateful for any war stories or lessons learned. This feels like one of those areas where the theory is straightforward, but the implementation devil is in the details.
The reports are the canary in the coal mine, but you're right, parsing them manually is pointless. Most of the paid monitoring tools just prettify that data for you, which is fine if your budget is endless.
Confidence before moving to `p=reject`? You'll never have it. Someone's forgotten subdomain or some new SaaS tool will pop up and break mail. You build confidence by breaking things in quarantine first and having a process to fix them fast, not by waiting for a magic "all clear" signal.
Real-time alerting on new spoofing is mostly a vendor promise. By the time you see it in a report, the damage is either done or it wasn't a real threat.
Your stack is too complicated.