How does Real-Time Email Verification protect my Focused Tab?
Every fake lead that reaches your CRM costs money, skews your analytics and spends your sales team's time. Capturing leads is half the job; keeping spam, bots and junk addresses out of the pipeline is the other half. Bread & Butter does that second half at the moment of capture, before an address becomes a lead.
In short: every email address submitted through any connected form passes through the Lead Integrity Firewall in real time. Five checks run in sequence: does the inbox exist, is it a disposable address, is it keyboard-mashed gibberish, is it a dot or plus-alias trick to submit the same form repeatedly, and is it a shared role inbox rather than a person. An address that fails is placed at Lead Stage 9, Spam / Bad Email, hidden from your Focused and Engaged Leads tabs, kept out of your CRM sync, and added to a shared index that makes the filter better for every Bread & Butter customer.
The Five Checks
Whenever a visitor submits an email address through a connected form, it passes through the verification engine before anything else happens. The checks run in this order.
1. Dead inboxes (hard bounces)
Why it matters. Sending outreach to an address that does not exist causes a hard bounce, and hard bounces damage your domain's sender reputation and push your legitimate email into spam folders.
What we do. An instant MX (Mail Exchange) record check confirms that the destination mail server and inbox exist before the address is let through.
2. Burner accounts (disposable emails)
Why it matters. Visitors who want your gated content without a conversation often use a temporary, self-destructing inbox such as 10MinuteMail.
What we do. The domain is cross-referenced against live blocklists of disposable email providers, so your sales team does not spend an hour researching an inbox that no longer exists.
3. Keyboard mashes and gibberish
Why it matters. Bots and impatient visitors mash the keyboard (asdfghj@gmail.com) to get past a required field.
What we do. An entropy check spots high-consonant, non-human strings and treats the submission as fake.
4. Syntax exploits and aliases
Why it matters. Scripts exploit the Gmail dot trick (v.a.c.a.y@gmail.com) and plus-aliases (name+1@, name+2@) to submit the same form hundreds of times without tripping a standard duplicate check.
What we do. Addresses are normalised to their base form before comparison, so the variants collapse into one record and the duplicates never reach your pipeline.
5. Shared role inboxes
Why it matters. Generic addresses such as info@, support@ and admin@ belong to a department, not to a buyer.
What we do. These are flagged as shared inboxes so Nurture AI, which writes one-to-one, does not send a personal email to a mailbox nobody owns.
What Happens When an Address Fails
- Placed at Lead Stage 9, Spam / Bad Email. The stage is fixed, so it cannot be renamed or moved by mistake.
- Hidden from the working views. Spam and Bad Email leads do not appear in the Focused Tab or the Engaged Leads tab. They stay visible in All Traffic, so you can audit what was caught.
- Kept out of your CRM. The address is never synced to Salesforce, HubSpot, Pipedrive or your email marketing tool. Since most CRMs price by contact count, that also means you are not paying to store junk, and your marketing automation never sends to it.
- Added to the shared index. A flagged address feeds the Lead Integrity Firewall index across the whole Bread & Butter network, so a disposable domain or a bot pattern caught on one site is recognised faster on every other site. See How do Lead Stages work in Bread & Butter, and why does marking Won/Closed matter?
What Verification Cannot Do
Verification confirms that an address is real, reachable and not a trick. It cannot fix a typo in an otherwise valid address, add a name to an address that arrived without one, or tell you which of three people sharing a family Gmail account just read your pricing page. For those, the stronger capture is a one-click social login, which arrives as a verified person rather than a string of characters. See Does using social logins instead of a simple email field decrease my conversion quantity?