Email appending services that add only verified addresses Damco matches your contacts to approved sources and checks every address it adds
Email append services for every kind of contact list Business contacts, consumers, or the reverse, from an email to a name
How our email appending works Match, verify, then a person checks the doubtful ones
- Day 1Agree the sourcesYou approve where addresses come from and how you'll use them.
- Day 2Test a sampleWe append to a sample, so you see the match rate first.
- Each batchAgents match and verifyAgents match each contact and verify the address before adding it.
- Each batchPeople decide the doubtful matchesA reviewer checks every match the agents score as unsure.
- DeliveryThe owner signs offA named batch owner answers for the file you load.
When an email append service is the right fit And when a different list service will do more for you
A good fit when
- You have names and companies from events or orders but no emails
- Your campaigns bounce because old addresses were never updated
- You hold emails but not the names and companies behind them
Look elsewhere when
- You want phone numbers and addresses as well: see data appending
- You want to email people with no relationship to you, which we won't support
- The list itself is full of duplicates: start with data cleansing
Email appending services in detail What each append does, who uses it, and what it changes
B2B email append services
B2B email appending adds work email addresses to the business contacts you already have. Agents match each contact on name, company, and domain, then verify the address before it goes in your file.
A sales team with 3,000 trade-show contacts and no emails can follow up the same week, instead of researching each one by hand.
Consumer email append services
Consumer email appending matches a person's name and postal address to an email address. We use only sources where people agreed to share their address, and we agree with your legal team how you may contact them before we start.
Retailers, travel companies, nonprofits, and banks use it to reach customers they already know by post.
Reverse email append services
Reverse appending works the other way. You hold an email address from a newsletter sign-up or a download form, and we find the name, company, and postal address behind it, so you know who your subscribers are.
Who should opt for email appending services
Any business that keeps contact lists and talks to its customers by email. The clearest cases are those where the relationship exists but the address is missing or old.
- Retail and ecommerce businesses reconnecting with past buyers
- Nonprofits updating donor lists
- Financial services, healthcare, and education providers keeping records current
- Technology, SaaS, real estate, and media companies working an account list
Email verification before every append
An appended address is only useful if it accepts mail. Before an address reaches your file, we check its syntax, that the domain receives mail, and that the mailbox exists, and we flag role addresses such as info@ and known spam traps.
Addresses that fail aren't added. You get a count of how many we found, how many failed, and how many we added.
Keeping your email list current
People change jobs and email providers every year, so a list that was right in January has gaps by December. We can rerun the append and the checks every quarter, replacing addresses that stopped working and adding ones for new contacts.
Benefits of email appending services
Fewer bounces protect your sender reputation, so more of your email reaches inboxes. Your campaigns reach people who already know you, which costs less than finding new ones, and outdated addresses come off the list as new ones go on.
Questions about email appending services What buyers ask us before an append starts
How is an email append service helpful for my business?
It lets you reach contacts you already have a relationship with but can't email today. Adding verified addresses to existing records means more targeted campaigns, fewer bounces, and a list that stays current.
How do email append services ensure data quality and accuracy?
We match each contact to sources you approved and verify every address for format, domain, and mailbox before adding it. Addresses that fail verification aren't added, and a reviewer decides every match the agents are unsure of.
Which industries use email append services?
Retail, ecommerce, financial services, real estate, healthcare, nonprofits, and education use it most, because each keeps large customer or donor lists. Any business that emails people it already knows can benefit.
Is email appending legal?
It depends on where your contacts live and how you'll use the addresses. We agree the intended use with your legal team before we start, and we append only from sources where people agreed to share their address.
What is the turnaround time for email appending?
A standard list of a few thousand contacts usually takes a few business days. Larger files run in batches, and we give you a date once we've tested a sample.
What is the cost of business email append services?
We price per record, and the price depends on the size of the list and the match rate on your sample. We quote after the sample, so the price reflects your list.
Send us a sample of the contacts
We'll reply with how many we can match and verify, and the price per record.