What is a distribution list?
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A distribution list (sometimes called a group address or email alias) is a single email address that forwards incoming mail to multiple recipients automatically. Send one email to the list, everyone on it gets a copy.
Distribution lists come in two main flavors. Client-side lists (like contact groups in Gmail or Outlook) live on your device and only work when you compose a new message. You're still sending individual copies to each recipient. Server-side lists (like Google Groups, Microsoft Exchange distribution groups, or Zoho Mail shared addresses) live on the mail server. Anyone can email the list address, and the server handles the forwarding.
The practical difference matters for email senders. If you send to a distribution list that's managed by someone else's organization (like sales@company.com forwarding to five people), you'll see one delivery to the list address in your logs, but bounces and spam complaints can come from any of the underlying recipients. That makes tracking messy. If one person on the list marks your email as spam, your reputation takes the hit even though the other four people wanted it.
Distribution lists also behave differently from marketing mailing lists. A mailing list (like your newsletter) tracks individual subscribers, handles unsubscribes, and shows engagement per person. A distribution list is just forwarding. You can't see who opened, who clicked, or who wants off. If someone on the list reports spam, you won't know which recipient did it unless you ask the list owner.
Common setup mistake: treating a distribution list like a single subscriber when it's actually five people. If you're sending marketing email to team@company.com and three people on that list don't want it, you're risking spam complaints without knowing where they're coming from.
When distribution lists work well: internal company communication, support ticket routing, department-wide announcements. When they don't: newsletter signups (use individual addresses), marketing campaigns (same reason), any situation where you need to track individual engagement or handle unsubscribes properly.
And if you're seeing bounces or complaints from addresses that look like shared inboxes or group addresses, check whether you're sending to distribution lists without realizing it. Worth asking subscribers to use individual email addresses during signup instead of team addresses. Your deliverability will thank you.
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