diff --git a/app/Console/Commands/SendDigest.php b/app/Console/Commands/SendDigest.php
new file mode 100644
index 0000000..fc9040c
--- /dev/null
+++ b/app/Console/Commands/SendDigest.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace App\Console\Commands;
+
+use Illuminate\Console\Command;
+use App\Mail\Digest;
+use Illuminate\Support\Facades\Mail;
+
+class SendDigest extends Command
+{
+    /**
+     * The name and signature of the console command.
+     *
+     * @var string
+     */
+    protected $signature = 'digest:send {--D|daily} {--W|weekly} {--M|monthly}';
+
+    /**
+     * The console command description.
+     *
+     * @var string
+     */
+    protected $description = 'Send a digest of recent updates.';
+
+    /**
+     * Execute the console command.
+     *
+     * @return int
+     */
+    public function handle()
+    {   
+        if (!$this->option('daily') && !$this->option('weekly') && !$this->option('monthly')) {
+            $this->error('No schedule specified.');
+            return;
+        }
+
+        // These are seperated because I may want to send multiple types
+        // of digest in a single commend.
+        if ($this->option('daily')) {
+            foreach (config('app.daily_digest_recipients') as $recipient) {
+                Mail::to($recipient)->send(new Digest('daily', config('app.current_trip_id')));
+            }
+        }
+
+        if ($this->option('weekly')) {
+            foreach (config('app.weekly_digest_recipients') as $recipient) {
+                Mail::to($recipient)->send(new Digest('weekly', config('app.current_trip_id')));
+            }
+        }
+
+        if ($this->option('monthly')) {
+            foreach (config('app.monthly_digest_recipients') as $recipient) {
+                Mail::to($recipient)->send(new Digest('monthly', config('app.current_trip_id')));
+            }
+        }
+    }
+}
diff --git a/app/Mail/Digest.php b/app/Mail/Digest.php
new file mode 100644
index 0000000..4de5749
--- /dev/null
+++ b/app/Mail/Digest.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace App\Mail;
+
+use DateTime;
+use App\Http\Controllers\TrackerController;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Mail\Mailable;
+use Illuminate\Queue\SerializesModels;
+
+class Digest extends Mailable
+{
+    use Queueable, SerializesModels;
+
+    /**
+     * The type of digest (e.g. weekly, monthly, etc.).
+     * TODO: Replace with enum
+     *
+     * @var string
+     */
+    public $digest_type;
+
+    /**
+     * The current trip locations as a JSON object.
+     *
+     * @var string
+     */
+    public $locations;
+
+    /**
+     * The current trip checkins as a JSON object.
+     *
+     * @var string
+     */
+    public $checkins;
+
+    /**
+     * Create a new message instance.
+     *
+     * @param string $digest_type
+     * @param string $trip_id
+     * @return void
+     */
+    public function __construct(string $digest_type, string $trip_id)
+    {
+        $this->digest_type = $digest_type;
+        $trip = (new TrackerController)->get_trip_data($trip_id);
+
+        $cutoffDateTime = new DateTime();
+        switch ($this->digest_type) {
+        case 'daily':
+            $cutoffDateTime->modify('-1 day');
+            break;
+        case 'weekly':
+            $cutoffDateTime->modify('-1 week');
+            break;
+        case 'monthly':
+            $cutoffDateTime->modify('-1 month');
+            break;
+        default:
+        }
+
+        $this->locations = array_filter(
+            $trip->locations, 
+            function($elem) use ($cutoffDateTime) {
+                $elemDateTime = new DateTime($elem->created_at);
+                return $elemDateTime > $cutoffDateTime;
+            }
+        );
+
+        $this->checkins = array_filter(
+            $trip->checkins, 
+            function($elem) use ($cutoffDateTime) {
+                $elemDateTime = new DateTime($elem->created_at);
+                return $elemDateTime > $cutoffDateTime;
+            }
+        );
+    }
+
+    /**
+     * Build the message.
+     *
+     * @return $this
+     */
+    public function build()
+    {
+        return $this->view('emails.digest')
+            ->subject("track.bengoldsworthy.net ".ucwords($this->digest_type)." Digest");
+    }
+}
diff --git a/app/Mail/WeeklyDigest.php b/app/Mail/WeeklyDigest.php
deleted file mode 100644
index b1f6440..0000000
--- a/app/Mail/WeeklyDigest.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php
-
-namespace App\Mail;
-
-use Illuminate\Bus\Queueable;
-use Illuminate\Contracts\Queue\ShouldQueue;
-use Illuminate\Mail\Mailable;
-use Illuminate\Queue\SerializesModels;
-
-class WeeklyDigest extends Mailable
-{
-    use Queueable, SerializesModels;
-
-    /**
-     * Create a new message instance.
-     *
-     * @return void
-     */
-    public function __construct()
-    {
-        //
-    }
-
-    /**
-     * Build the message.
-     *
-     * @return $this
-     */
-    public function build()
-    {
-        return $this->view('emails.weekly-digest')
-            ->subject('Weekly Digest');
-    }
-}
diff --git a/config/app.php b/config/app.php
index e4de739..99ddef1 100644
--- a/config/app.php
+++ b/config/app.php
@@ -72,6 +72,19 @@ return [
 
     'past_trip_ids' => explode(',', env('PAST_TRIP_IDS')),
 
+    /*
+    |--------------------------------------------------------------------------
+    | Digest Mailing Lists
+    |--------------------------------------------------------------------------
+    |
+    | The the mailing lists for the various digests.
+    |
+    */
+
+    'daily_digest_recipients' => explode(',', env('DAILY_DIGEST_TO')),
+    'weekly_digest_recipients' => explode(',', env('WEEKLY_DIGEST_TO')),
+    'monthly_digest_recipients' => explode(',', env('MONTHLY_DIGEST_TO')),
+
     /*
     |--------------------------------------------------------------------------
     | Application Timezone
diff --git a/resources/views/emails/digest.blade.php b/resources/views/emails/digest.blade.php
new file mode 100644
index 0000000..131247d
--- /dev/null
+++ b/resources/views/emails/digest.blade.php
@@ -0,0 +1,57 @@
+<style>
+    :root {
+        --dark: #020202;
+        --light: #fffff0;
+    }
+
+    body {
+        font-size: 16px;
+        margin: 1em;
+        color: var(--dark, #020202);
+        background-color: var(--light, #fffff0);
+        background-color: #fffff0;
+        font-family: "Palatino Linotype", "Book Antiqua", Palatino, serif;
+    }
+
+    .checkin {
+        border-top: 1px solid black;
+        padding: 1em 0;
+    }
+
+    .checkin__summary {
+        cursor: pointer;
+    }
+
+    .checkin__title {
+        display: inline;
+        font-size: 1em;
+    }
+
+    .checkin__meta {
+        margin: 0;
+    }
+</style>
+
+<h1>track.bengoldsworthy.net {{ ucwords($digest_type) }} Digest</h1>
+<p><i>Generated: {{ (new DateTime())->format('D jS F Y') }}</i></p>
+<p>View the tracker <a href="https://track.bengoldsworthy.net">here.</a></p>
+<hr>
+<h2>Checkins</h2>
+<ol>
+@foreach($checkins as $checkin)
+    <li>
+        <details class="checkin" id="{{ $checkin->id }}">
+            <summary class="checkin__summary">
+                <h3 class="checkin__title">{!! $checkin->title ?? "<i>Untitled</i>" !!}</h3>
+                <p class="checkin__meta">{!! render_date_difference($checkin->date) !!}</p>
+            </summary>
+            @if($checkin->note)
+            {!! $checkin->note !!}
+            @endif
+            @if($checkin->image_url)
+            <img class="popup__image" loading="lazy" src="{{ $checkin->image_url }}">
+            @endif
+        </details>
+    </li>
+@endforeach
+</ol>
diff --git a/resources/views/emails/weekly-digest.blade.php b/resources/views/emails/weekly-digest.blade.php
deleted file mode 100644
index 100d283..0000000
--- a/resources/views/emails/weekly-digest.blade.php
+++ /dev/null
@@ -1 +0,0 @@
-<p>Hello, world</p>