You write a good email, you send it to 100 local businesses, and 12 come straight back. That stings, but the real damage is quieter. Every bounce tells Gmail and Outlook that you do not know who you are writing to. Enough of them and your next emails, even to people who would have replied, start landing in spam.
In outreach forums the same story keeps coming up: people burning through sending domains faster than they can warm new ones. Very often the cause is not the copy. It is the list.
The five kinds of bad address
When I tested addresses pulled from local business websites, the problems fell into five groups:
- Not an email at all. Code that looks like an address, such as a tracking key or an image file name. A careless scraper grabs anything with an @ in it.
- The website builder's address. Support desks of the platform the site was built on, scraped from the footer and sold as if they were the business. Writing to them reaches a help desk, not the owner.
- Dead addresses. The business changed domain, or the person left. These bounce hard.
- Accept-all servers. Some mail servers say yes to every address, real or not. You cannot tell from outside whether your email will reach a person, so treat these with care.
- Shared inboxes. info@ and hello@ addresses are real, but often unread or read by whoever is at the desk. Fine for a first touch, weaker than a named person.
What bounces cost you
Mailbox providers watch how your messages are received. Bounces, spam complaints and low engagement all count against you. A common rule of thumb in outreach circles is to keep bounces under about 2 percent of what you send. A raw scraped list can easily be five times that.
And it compounds. Lower inbox placement means fewer replies, so you send more to compensate, which means more bounces.
Check before you send
The fix is boring and it works: verify every address before it goes into a sequence. A good check confirms the domain accepts mail, asks the server whether the mailbox exists without sending anything, and labels the result:
- Delivers: send.
- Accepts all mail: send carefully, in small numbers, and watch the results.
- Shared inbox: fine for a first touch, but look for a named person.
- Bounces or throwaway: remove.
Better than any check: the right address in the first place
The best address is the one the business publishes itself, on its own contact or about page, or the owner's own address when they name themselves. That is why it pays to read the business's site rather than grab whatever a scrape returns.
In LocalBuyerFinder, emails come from each business's own website, junk patterns like tracking keys and website-builder addresses are filtered out, and when you unlock a search every address is tested and labelled the same way as the list above. You see "delivers", "accepts all mail" or "shared inbox" next to each one before you write a word. More on what a credit covers is on the pricing page.
A sending routine that protects you
- Verify the list, every time, even if it is your own.
- Start a new domain or inbox slowly, a handful of emails a day, and build up.
- Write to named people where you can, and keep each email about the business you are writing to.
- Watch your bounces after every batch. If they climb, stop and clean the list before you send more.
Your sending reputation takes weeks to build and days to wreck. A clean list is the cheapest insurance you can buy. If you are still building that list, our guide to Google Maps lead generation covers where to start.