---
title: "Contacts"
description: "The people you can email — subscription state, custom fields, and imports."
url: https://www.unitpost.com/guides/contacts
section: Guides
updated: 2026-07-31
---
# Contacts

## Contacts

> The people you can email — subscription state, custom fields, and imports.

Contacts are individual recipients: an email address plus optional name and custom fields you define. Each contact has a marketing subscription state — subscribed contacts are mailable; unsubscribed or suppressed contacts are skipped automatically and never receive campaign mail.

### Importing

Import contacts in bulk from CSV. The import is per-row resilient: valid rows are created even if others fail. You get a summary of imported, skipped, and rejected rows, so one bad line never sinks the file.

> **Custom-field limits:** Custom fields are capped per contact (and on key/value length). Rows that exceed the caps are rejected in the import rather than truncated silently.

### Deleting a contact

Deleting a contact removes them from every segment. If segments are targeted by an active campaign, the confirmation shows the impact.

Contacts are the first link in the core flow: group them into Segments, then send to a segment from a Campaign.

## Related

- [Suppressions](https://www.unitpost.com/guides/suppressions): Addresses blocked from receiving mail — protecting your sending reputation.
- [Segments](https://www.unitpost.com/guides/segments): Named groups of contacts that campaigns send to.
- [Subscription topics](https://www.unitpost.com/guides/topics): Let contacts opt out of one kind of mail without leaving your list.