When to Use Email vs. Slack: Team Communication Tips
When to Use Email vs. Slack: Team Communication Tips
Sofie Couwenbergh
Guest writer
Last updated:
August 11, 2023
Cut to the chase...
Get started with the world's first shared inbox designed for Gmail and Google Workspace.
Cut to the chase...
Turn your most effective emails into smart templates you can share with your team in Gmail.

As more companies transition to virtual environments and distributed teams become more common, team communication needs may undergo similarly drastic changes. Email is the global standard for online messages—particularly in business— and of the many email management systems, Gmail is probably the most widely used. (As such, this blog post uses email and Gmail interchangeably.) Even so, Slack continues to grow as a popular platform for team communications. 

Although comparing email vs. Slack for different occasions offers important insights, integrating both platforms allows teams to use traditional messages as well as more immediate chat options with Slack. Instead of choosing one communication channel, using them together can enhance your team's collaborative capabilities and benefit productivity.  

Email vs. Slack: Create Team Communication Standards

In virtual working environments, some team members cling to the nostalgic ease of walking into a coworker’s office for a quick question. Others cherish the increased productivity remote work offers by simply silencing chat and email tools rather than fending off face-to-face interruptions and distractions. 

Problems emerge when team members have different communication expectations and habits. Establishing protocols for team communication is vital for maintaining—and increasing—productivity. Obtaining a simple team consensus can prevent frustrations caused by delayed responses. Informing other team members of messaging preferences also encourages organized information sharing, thereby boosting employee collaboration and efficiency. 

By comparing Email vs. Slack, teams can determine which platform works best for different situations and learn to optimize both platforms. After all, both platforms offer different, but equally beneficial, features. 

When To Use Email vs. Slack?

Even though integrating the two platforms offers the most benefits by improving clarity in your messaging to boost team productivity, some individual cases may require you to choose between the two. Ultimately, each platform supports a specific form of communication, so platform usage will differ based on the type of information you need to send.  

Slack Over Email 

Slack is a chat-first tool meant for interactions that rely on quick responses in a more casual tone. Instances in which users may prefer Slack to Gmail include, but are not limited to:

  • Urgent messages
  • Real-time collaboration
  • Organizing team bonding:
    • Daily watercooler moments
    • Weekly team-building chats
    • Quick brainstorming sessions

Internal department collaboration may be easier when using Slack vs Email. Searching for internal team members is easier in Slack, when Gmail addresses may not represent the recipient’s name. Also, even if you have never messaged a Slack user before, the interface still allows you to find them easily. In contrast, it’s only easy to find someone in Gmail if you have emailed them in the past.

Slack is an informal, user-friendly form of communication. This makes it better suited than Gmail for casual conversation-like messages and internal company-based communication. 

Even if you decide to use Slack as your main communication channel, there are many downsides to using Slack by itself. Gmelius gives Slack extra features and implementations that can help die-hard Slack users to communicate easily with team members who prefer Gmail. 

Gmelius can help integrate your Slack and Gmail platforms to expedite team organization and information sharing. This combination also allows members to:

  • Change Gmail assignment statuses within Slack
  • Assign Gmail tasks to teammates from Slack
  • Reply to emails from Slack
  • Sync Gmail notes with Slack
  • Integrate email shared inboxes with Slack

Asynchronous communication refers to messaging that does not happen simultaneously, or when messages do not require immediate responses. Senders and receivers can take time to reply with the correct information. This kind of messaging operates under rules opposite to the chat-first toolset Slack provides. Despite its native chat format, Slack can also act as a method for asynchronous communication with the implementations Gmelius offers. 

Email Over Slack

Gmail is the best platform for conveying detailed, precisely worded messages. Senders can take the time to provide all the necessary information compiled in one email, offering a perfect example of asynchronous communication.

Because it takes longer to craft a well-written email than a quick chat reply, this communication medium is better suited for thorough or formal messages that require less immediate replies. 

Email also offers an easy way to keep track of threads and scroll back through older conversations. This searchable history is one of email’s greatest strengths. Catching up on conversations in Slack can be a hassle due to its fast, chat-focused nature. Gmail threads your messages together to provide a concise, chronological order of messages for easy-to-find information.

Email is best used for long-form or official external communication and organization. While you can search for a message in Slack, email gives users a filter feature in which they can search for messages based on:

  • Sender
  • Subject
  • Size
  • Date
  • Message
  • Attachments

Filtered searches help users organize their mailboxes and find important messages easily. 

Gmail offers analytics that can benefit teams, but the native analytics tools in Google Workspace are limited. To provide the best insights into team communications and give leaders a baseline reading on productivity, Gmelius boosts Gmail analytics with more features and implementations. Whether your team decides to use Slack or Gmail as their main communication platform, these analytics will prove beneficial. When replying to an email, either from Slack or Gmail, tracking the average time to reply helps identify bottlenecks and other obstacles to successful projects.

Gmelius also gives Gmail more automation for workflow organization. For team managers, workflow automation is essential to keeping up with the influx of projects and tasks. Using Gmelius’s “if this, then that” logical process, you can:

  • Change assignment status
  • Send automated replies
  • Assign tasks to teammates
  • Set time-based targets with SLA rules
  • etc.

Email vs. Slack: Make Them Work Together 

Ultimately, most team members will prefer one platform over the other. Consequently, team members will split their usage between both platforms, muddying the clarity of shared information—unless teams can learn to embrace the benefits of both. Since each tool offers different strengths, using both platforms for different reasons maximizes your communication and collaboration benefits. Increase team productivity and help unify team members who prefer one over another by integrating the two platforms. 

To eliminate confusion, create clear internal guidelines that stipulate which tool to use for different types of messaging and forget about the “Email vs. Slack debate.” You can unite both platforms with Gmelius, and explore some of the additional integrations that can help boost your team’s productivity. Check out all our features and integrations and learn how Gmelius is built to improve team communication and collaboration. Ready to get started? Sign up today!

The collaboration platform for Gmail.

Get Gmelius, it's free
Gmelius empowers your teams to collaborate, manage projects, serve your customers, and automate workflows without leaving Google Workspace and your favorite daily apps.
Cut to the chase...
Get started with the world's first shared inbox that lives in Gmail.
Cut to the chase...
Turn your most effective emails into smart templates you can share with your team in Gmail.

Continue Reading

It's time to take back control of your workday

Leading email collaboration software
7-day free trial & no credit card required
5-minute setup
Cloud secure
99.99% uptime the last 12 months
Serious about security & privacy