A Slack Gmail integration can mean a few different things, and Slack itself ships three of them: the official Slack for Gmail add-on, a dedicated email address you can create for any channel or DM, and a personal forwarding address that delivers email to your DM with Slackbot. All three move the content of an email into Slack, where the team can read and discuss it without anyone pasting screenshots of their inbox.
What none of them changes is what happens after the email arrives. A lot of the email a team gets is work in disguise — an invoice that needs paying, a customer waiting on a reply — and forwarding it into a channel doesn't assign that work to anyone. This post goes through the native options first, with the setup steps for each, and then a second kind of connection: applying a label in Gmail and having a tracked task appear in Slack automatically, with an owner and a due date.
The options built into Slack
Slack documents all three native methods in its help article on sending emails to Slack. Here's what each one does and when it makes sense.
The Slack for Gmail add-on
The Slack for Gmail add-on installs from the Google Workspace Marketplace and adds a Slack icon to the right-hand sidebar of your Gmail inbox. Open an email, click the icon, pick a channel or person, and the email is posted there — you can include a note of your own and the attachments. It works on every Slack plan, and it's the right tool for the occasional email worth sharing: a customer question the team should see, or a thread that's outgrown email and needs a quicker back-and-forth.
It's a manual, one-email-at-a-time action, which is most of the point. You choose what crosses over, so channels don't fill up with mail. Slack does cap the size: an email body can't exceed 1MB, and email plus attachments can't exceed 30MB.
An email address for a channel or DM
On paid plans, any channel or DM can have its own email address. Open the conversation, click the channel name, go to the Integrations tab, and choose Send emails to this channel. Anything sent to that address gets posted in the conversation. The usual setup is an automatic forwarding rule: point invoices@yourcompany.com at the address for #finance, or a Gmail filter at the address for #support, and matching email flows in on its own.
This is the option for a steady stream rather than a one-off, like a shared inbox the whole team should see as it arrives. It's also the one that creates the most volume, so it's worth being deliberate about which mail you route this way.
A forwarding address for Slackbot
Under Preferences, in Messages & media, Slack will generate a personal forwarding address that delivers email to your DM with Slackbot. It's private to you, available on all plans, and useful as a personal "deal with this later" lane: forward an email from your phone and it's waiting in Slack when you're back at your desk. Nobody else can see it, which makes it a personal tool rather than a team one.
[IMAGE: a forwarded email shown as a message in a Slack channel — sender, subject line, and body preview visible, with a couple of emoji reactions]
What an email becomes once it's in Slack
With any of the three methods, the email arrives as a message. People can read it, react to it, and reply in a thread, and for emails that just need to be seen or discussed, that's the whole job done.
For emails that need someone to do something, the message format has a gap. Say an invoice lands in #finance through the channel's email address. Someone reacts with 👀, two people discuss which budget it comes out of, and the channel moves on. A week later, the only way to find out whether it was paid is to scroll back and ask. The message never had an assignee, a deadline, or a status, so there's no record of who took it and nothing that follows up if no one did. The same applies to a customer email shared via the add-on: everyone saw it, but answering it still depends on someone deciding it's theirs.
Slack's native tools can patch this one message at a time: a reminder set on the message, or someone retyping it into a list. Both depend on a person remembering to do the patching, for every email.
Gmail to Slack at the task level: label an email, get a task
The more durable setup treats the emails that require action differently from the ones that require reading. Instead of forwarding content into a channel, you connect Gmail to Slack so that applying a label to an email creates a task in Slack, with an owner and a due date.
The wiring is straightforward with Zapier. Gmail's Zapier integration has a "New Labeled Email" trigger that fires whenever a label you choose is applied to an email. On the other end, Chaser — a task manager that runs inside Slack — connects to Zapier, so the trigger's output becomes a new task: the email subject as the task name, a link back to the thread in the description, an assignee, and a due date. Chaser also accepts incoming webhooks and has an API, so the same flow can run without Zapier if you'd rather wire it yourself. Chaser doesn't have a first-party Gmail integration; the connection runs through Zapier or a webhook. There's more on this style of setup in this guide to Slack workflow automation.
How you wire it is up to you, and teams vary it in a few ways:
- One label or several. A single "Action" label feeding one channel is the simplest version. Separate labels per team — "AP" to #finance, "Follow up" to #sales — let each kind of email land where its owners are.
- Who gets assigned. The Zap can assign every task from a label to a fixed person (the AP owner, say), or to whoever manages that channel's work, who then reassigns in Slack.
- The due date. A default like "three business days from creation" works for most labels; date-sensitive ones, like invoices, can get a tighter default.
Once it's running, the day-to-day habit is one click in Gmail. An email that needs action gets the label, and a few seconds later there's an assigned task in Slack that Chaser reminds the owner about until it's done. Teams that route other sources into Slack the same way — pitches and briefs for a content production workflow, or events from a code repository as in this guide to the GitHub Slack integration — end up with one task list regardless of where the work originated.
Three examples from a normal week
An invoice finance needs to pay
A vendor sends an invoice to the shared inbox. Whoever triages mail that morning labels it "AP", and a task lands in #finance assigned to Maya with a due date ahead of the payment terms. Chaser reminds her before it's due and keeps reminding after if it's still open, and the channel's status report lists it until it's marked done. When the auditor asks in March whether the Birch & Co invoice was paid on time, the task record answers without anyone searching their inbox.
A customer reply sales needs to follow up on
A prospect replies "let's talk in two weeks." That email is easy to archive and forget. Labeled "Follow up", it becomes a task assigned to the account owner, due in twelve days, and Chaser reminds them as the date approaches and keeps reminding if it passes. Tasks with due dates can also appear next to meetings in a calendar, covered in this guide to the Google Calendar Slack integration.
A vendor contract that needs review
A renewal contract arrives with a signature deadline. Labeled "Review", it becomes a task in #ops with the deadline as the due date. The reviewer attaches the marked-up version in the task's thread, so the document and the discussion sit with the task rather than in a separate email chain. If review work like this is a big share of your team's load, this guide to task management in Slack goes deeper on running it all from Slack.
Choosing a Slack Gmail integration
The four approaches solve different problems, and most teams end up using two of them together — typically the add-on for ad-hoc sharing plus one automated route.
Final thoughts
Slack's native email features are good at what they're built for, and they're worth setting up: the add-on for sharing, a channel address for any shared inbox the team watches. The piece worth adding on top is a route for the emails that carry work in them. A label in Gmail that turns into an assigned task in Slack costs one click per email, and it gives each of those emails an owner, a due date, and a reminder that runs on its own.
You can try Chaser for free and see how it fits the way your team already works in Slack. Get started and add Chaser to Slack, for free.
