---
title: "Import and export your suppressions in bulk"
description: "Import and export your suppressions as a CSV. Bring an existing list over in one go, or work with it in your own system."
url: "https://lettermint.co/changelog/import-and-export-suppressions"
published: "2026-08-18"
last_updated: "2026-08-18"
---

# Import and export your suppressions in bulk

> Import and export your suppressions as a CSV. Bring an existing list over in one go, or work with it in your own system.

Some messages never make it to the inbox, and some
recipients opt out of your
[broadcast emails](https://lettermint.co/features/broadcast-emails).
Either way, that address lands on your
[*suppression list*](https://lettermint.co/changelog/improved-suppressions-management).
We check that list before every send, so nothing else
goes out to it.

*Until you need the whole list at once...*

Say you are migrating to a
[European email provider](https://lettermint.co/european-email)
like Lettermint, or you want to work with your
*suppressions* in your own system. From today you can
import and export the list as a CSV, and unblock
addresses in bulk.

![Lettermint import Suppressions](https://lettermint.co/content/changelog/lettermint-import-suppressions.webp)

## Import an existing list

Hard bounces and spam complaints damage your sending
reputation. Keep mailing addresses you already know are
trouble, and it starts to affect everything else you
send, including your
[transactional email](https://lettermint.co/features/transactional-emails).

Your old provider has all of that on record: every
address that came back as a
[hard bounce](https://lettermint.co/knowledge-base/deliverability/understanding-email-statuses-hard-bounce-delivered-pending)
and everyone who opted out. Worth bringing with you.

Upload it as a CSV and choose where the block applies:
across your whole team, within one project, or on a
single route.

## Export your suppressions

The same works in reverse. Running your own system or
marketing tools alongside Lettermint means keeping the
same opt-outs in both places. And when you manage email
for clients, an export shows them exactly who is on the
list.

You decide what ends up in the file. Filter the way you
would in the overview, so you can pull just the spam
complaints from one project, then pick your columns.
You always get the address, the reason and the date it
was added, with the option to include where the block
applies and which project or route it came from.

![Lettermint Bulk Suppressions](https://lettermint.co/content/changelog/lettermint-bulk-suppressions.webp)

## Unblock addresses in bulk

Not every block is meant to last. A mail server that
was down for a day, a test address you added yourself,
a client you have since sorted things out with.

Tick those rows in the overview, confirm, and they come
off the list. From that point you can email them again.

## Available now

Importing, exporting and bulk unblocking are live in
your
[*suppressions*](https://app.lettermint.co/suppressions).
Our
[documentation](https://lettermint.co/docs/platform/emails/suppressions)
explains the four reasons an address gets blocked and
the levels a block can apply to.