Maildosoを使って2026年にメール配信率を最大化する方法とは？

クイックスタート

このガイドでは、Maildosoのすべての機能について説明します。

• はじめる — Create your account and connect your first domain
• 統合機能の使い方 — Push your inboxes into Instantly, Smartlead, or Saleshandy
• ウォームアップフィルターの使い方 — Auto-file warm-up mail so real replies stay visible
• CRMの使い方 — A light pipeline view for lead generation work
• マスター受信箱の使い方 — One screen instead of thirty browser tabs
• ドメイン管理の使い方 — Handle secondary domains without touching a registrar panel
• AIを活用したウォーミングアップの使い方 — A 14-day ramp that mimics human conversation
• 自動セットアップの使い方 — Hundreds of inboxes in under ten minutes
• カスタムトラッキングドメインの使用方法 — Global Custom Domain Tracking keeps links clean
• 専用メールボックスの使い方 — Your own IP addresses, monitored and rotated

所要時間： 各作品につき5分

このガイドには以下の内容も含まれています。 プロのヒント | よくある間違い | トラブルシューティング | 価格 | 代替案

このガイドを信頼する理由

I’ve run Maildoso for the past year across three client accounts.

Every screen below comes from real コールドメール outreach, not vendor screenshots.

Maildoso is a private email infrastructure tool for cold email at scale.

Most users only touch the setup wizard and stop there.

This guide shows you how to use Maildoso end to end.

スクリーンショットとプロのアドバイスを交えながら、手順を一つずつ解説します。

Maildosoチュートリアル

This How to Use Maildoso tutorial walks through every feature, from your first domain to advanced features power users rely on.

メールドソ

Spin up hundreds of domains and mailboxes in minutes. Maildoso handles SPF, DKIM, DMARC, and warm-up so your cold email lands in the inbox. Plans start at $100 per month for 32 mailboxes.

今すぐMAILDOSOをお試しください →

レビュー全文を読む →

MAILDOSOの代替品 →

Maildoso の利用開始

Before touching any feature, finish this one-time setup.

約3分かかります。

Here’s what my own account looked like on day one:

それでは、各ステップを順を追って見ていきましょう。

ステップ1：アカウントを作成する

Go to the Maildoso website and click Get Started.

Enter your work email and set a password.

✓ チェックポイント: Check your inbox for the confirmation email.

Step 2: Open the Web Dashboard

Maildoso runs in the browser, so there is nothing to install.

Log in and land on the domains overview screen.

ダッシュボードの画面は以下のようになります。

✓ チェックポイント: You should see an empty domain list and a setup button.

Step 3: Order Your First Domains

Pick your mailbox count, then let Maildoso buy and authenticate the domains.

Never send from your primary domain during cold outreach.

You will send emails from these secondary domains instead.

Maildoso連携機能の使い方

統合 lets you connect Maildoso mailboxes to the sending tool you already use.

以下に、その使用方法をステップごとに説明します。

ステップ1：統合タブを開きます

Click Integrations in the left sidebar of your dashboard.

Maildoso focuses on infrastructure, so your sending tool stays where it is.

Step 2: Copy Your Mailbox Credentials

Select the mailboxes you want, then export SMTP and IMAP details.

You can export multiple accounts as a single CSV file.

これがその様子です。

✓ チェックポイント: Every mailbox shows a green connected status inside your sending tool.

Step 3: Paste Them Into Your Sending Tool

Import that file into Instantly, スマートリード, Saleshandy, or Klenty.

Your cold email campaigns now run on Maildoso infrastructure.

Maildosoウォームアップフィルターの使い方

ウォームアップフィルター lets you keep warm-up traffic out of the inbox you actually read.

以下に、その使用方法をステップごとに説明します。

Step 1: Open Warm-up Settings

Go to Warm-up, then click the Filters tab.

Filters apply across every mailbox at once.

Step 2: Create a Warm-up Label

Name a folder and route all warm-up mail into it.

This keeps warm-up threads separate from prospect replies.

これがその様子です。

✓ チェックポイント: Your main inbox shows only genuine replies from real prospects.

Step 3: Save and Verify

Send a test message, then verify it lands in the new folder.

Check again after 24 hours once volume ramps up.

How to Use Maildoso CRM

CRM lets you track prospects and replies without leaving the platform.

以下に、その使用方法をステップごとに説明します。

Step 1: Open the CRM Tab

クリック CRM in the main navigation bar.

You will see contacts pulled from your connected mailboxes.

ステップ2：パイプラインステージを設定する

Rename the default stages to match your outbound sales process.

Four stages is usually enough for cold outreach.

これがその様子です。

✓ チェックポイント: Your pipeline shows contacts sorted by stage with reply dates attached.

Step 3: Move Replies Into Stages

Drag each interested reply into the right stage as conversations progress.

CRM integration with your main system is available through the export option.

Maildosoマスター受信箱の使い方

マスター受信トレイ lets you read replies from every sending domain in one place.

以下に、その使用方法をステップごとに説明します。

ステップ1：マスター受信トレイを開く

Click Master Inbox from the dashboard sidebar.

Every connected mailbox feeds into this single view.

Step 2: Filter by Domain or Mailbox

Use the dropdown to narrow replies down to one domain.

This helps when you run multiple campaigns from separate domain groups.

これがその様子です。

✓ チェックポイント: Replies from all sending domains appear in one scrollable list.

Step 3: Reply Directly From the Thread

Hit reply and answer without switching accounts.

Your response sends from the original mailbox automatically.

How to Use Maildoso Domain Manager

ドメイン管理 lets you buy, connect, and manage multiple domains from one dashboard.

以下に、その使用方法をステップごとに説明します。

Step 1: Open the Domains Tab

Click Domains, then choose Add New Domain.

Buy through Maildoso or connect domains you already own.

Step 2: Confirm DNS Records

Maildoso writes SPF, DKIM, and DMARC records for you.

Records for purchased domains apply in under three minutes.

これがその様子です。

✓ チェックポイント: Each domain shows a green authentication badge on the domain list.

Step 3: Set Up Domain Forwarding

Point every secondary domain at your main website URL.

Domain forwarding stops bare domains from looking abandoned to spam filters.

How to Use Maildoso AI-powered Warm-up Tool

AIを活用したウォーミングアップ lets you build sender reputation automatically before your first real send.

以下に、その使用方法をステップごとに説明します。

Step 1: Enable Warm-up per Mailbox

Toggle warm-up on for every new mailbox you create.

Run it for 14 days before launching cold email campaigns.

Step 2: Set a Daily Ramp Limit

Start low and climb toward roughly 60 emails per day.

Never push a single account past that ceiling.

これがその様子です。

✓ チェックポイント: Warm-up emails are sending, opening, and replying on their own.

Step 3: Watch the Health Score

Check the warm-up score weekly and pause any mailbox that drops.

Steady warm-up replies boost engagement signals that providers watch closely.

How to Automate Maildoso Setup

自動セットアップ lets you create mailboxes and domains in bulk instead of one at a time.

以下に、その使用方法をステップごとに説明します。

Step 1: Choose Your Mailbox Count

Pick how many domains and email accounts you need.

Maildoso caps each domain at five accounts to protect reputation.

Step 2: Enter Your Sender Details

Add first and last names for each sender profile.

Real-sounding names beat generic aliases like info or sales.

これがその様子です。

✓ チェックポイント: Your mailbox list populates with authenticated accounts ready to warm up.

Step 3: Launch the Build

Confirm and let the system provision everything.

Setup finishes in just a few clicks with no manual DNS work.

Maildosoカスタムトラッキングドメインの使用方法

カスタムトラッキングドメイン lets you track opens and clicks without borrowing a shared tracking link.

以下に、その使用方法をステップごとに説明します。

ステップ1：トラッキング設定を開く

Find Global Custom Domain Tracking inside your domain settings.

GCDT assigns tracking to a domain you control.

Step 2: Enable GCDT per Domain

Switch tracking on for each sending domain in the list.

Custom domain tracking stops shared trackers from dragging your reputation down.

これがその様子です。

✓ チェックポイント: Your tracking links show your own domain instead of a generic tracker.

Step 3: Test a Live Link

Send yourself an email containing a link and an image.

Confirm both render and that the click registers.

Maildoso専用メールボックスの使い方

専用メールボックス lets you send from private infrastructure instead of a crowded shared pool.

以下に、その使用方法をステップごとに説明します。

Step 1: Review Your IP Assignment

Open the mailbox detail view to see assigned IP addresses.

Maildoso monitors ip reputation continuously in the background.

Step 2: Check the Rotation Log

Look at the rotation history for any recent sender rotation events.

Rotation happens automatically when an address starts underperforming.

これがその様子です。

✓ チェックポイント: Your placement report shows most seeds landing in the primary inbox.

Step 3: Run a Deliverability Test

Send a seed test and read the placement report.

Repeat monthly, since small fixes now mean better inbox placement later.

Maildosoのプロ向けヒントとショートカット

After a year of testing, these are the habits that actually moved my numbers.

キーボードショートカット

ほとんどの人が見逃す隠れた機能

• Bulk mailbox naming: Upload a name list so mailbox names read like real people, not aliases.
• Deliverability test scheduling: Automate weekly seed tests and catch drops before response rates fall.
• Spintax and merge tags: Mix both in sending tools so personalized sequences read human.

One more thing worth checking before you scale:

Those benefits stack up fastest when you run outbound campaigns every week.

Maildosoでよくある間違いを避ける方法

Mistake #1: Sending Before Warm-up Finishes

Mistake #2: Overloading a Single Domain

Mistake #3: Ignoring Real-Time Deliverability Metrics

Maildosoのトラブルシューティング

Problem: Emails Land in Spam Folders

原因： Heavy HTML, image-only messages, or volume that climbed too fast.

修理： Switch to plain text, cut sending to 50 daily, and space intervals between sends.

Problem: DNS Setup Will Not Verify

原因： Purchased domains sit on Maildoso nameservers, which limits outside DNS edits.

修理： Request the record change from support team chat instead of editing it yourself.

Problem: Deliverability Drops After Week Three

原因： Warm-up was switched off once live sending started.

修理： Turn warm-up back on and pause the worst mailboxes for seven days.

📌 注記： If none of these help, contact Maildoso support.

Maildoso とは何ですか?

メールドソ is a private email infrastructure tool built for cold outreach at volume.

Think of it like a rented warehouse of domains and email accounts.

こちらの簡単な概要をご覧ください。

主な機能は以下のとおりです。

• 統合: Push your inboxes into Instantly, Smartlead, or セールスハンディ
• ウォームアップフィルター： Auto-file warm-up mail so real replies stay visible
• CRM: A light pipeline view for lead generation work
• マスター受信トレイ: One screen instead of thirty browser tabs
• ドメイン管理: Handle secondary domains without touching a registrar panel
• AIを活用したウォーミングアップ： A 14-day ramp that mimics human conversation
• 自動設定： Hundreds of inboxes in under ten minutes
• カスタムトラッキングドメイン: Global Custom Domain Tracking keeps links clean
• 専用メールボックス： Your own IP addresses, monitored and rotated

The platform creates hundreds of mailboxes and domains in under ten minutes.

It then handles SPF, DKIM, and DMARC checks automatically for every one.

Email deliverability is the whole reason this category exists.

Most cold email tools send messages, while Maildoso supplies the accounts behind them.

Real-time IP monitoring watches reputation and rotates addresses when numbers slip.

詳細なレビューについては、こちらをご覧ください。 Maildosoのレビュー.

Maildosoの価格設定

Maildosoの2026年のコストは以下のとおりです。

無料トライアル: No free trial. Pricing scales with mailbox count, and eight domains come with the entry plan.

返金保証: Not advertised. Ask billing before committing to an annual term.

💰 最もお得な価格: 68 Mailboxes at $166/month — the cheapest tier that supports serious outbound sales.

Maildosoと代替案の比較

How does Maildoso compare? Here is the competitive landscape:

おすすめ商品：

• 総合ベスト： Maildoso — private infrastructure with sender rotation and monitoring built in
• ベスト予算： Saleshandy — cheapest way to send if you already own domains
• 初心者におすすめ： Mailshake — least setup for new users sending their first campaign
• マルチチャネルでのアウトリーチに最適： 返信 IO — email, calls, and social in one sequence

🎯 Maildosoの代替品

Maildosoの代替サービスをお探しですか？おすすめの選択肢はこちらです。

• 🚀 即座に: Runs cold email campaigns at volume with built-in warm-up and a unified inbox for replies.
• 💰 スノフ: Cheap email finders plus drip sequences, handy for small teams doing lead generation on a budget.
• 🏢 アポロ： Huge B2B contact database with dialer and sequences, built for larger outbound sales teams.
• 🔍 ハンターIO: Finds and lets you verify work addresses fast, then hands lists to your sending tool.
• 🔄 返信IO: Multichannel outreach across email, リンクトイン, and calls with strong sequence branching.
• 📊 アップリード: Verified contact data with real-time checks, good when list quality matters more than volume.
• 👶 メールシェイク: Simple sending tool for new users who want personalized sequences without heavy setup.
• 🎨 レムリスト: Creative personalization with images and video, strong for standing out in crowded inboxes.
• ⚡ キツツキ: Reliable sending with smart follow ups and agency-friendly client management built in.
• 🔥 スマートリード: Unlimited mailboxes and rotation, a common pairing when you connect Maildoso inboxes to it.
• 💼 セールスハンディ: Affordable sequences with sender rotation and a shared inbox for managing campaigns.
• 🎯 クレンティ： Sales engagement with CRM integration for teams living inside HubSpot or セールスフォース.
• 🔒 ウォームボックス: Warm-up only service that builds sender reputation on mailboxes you already own.
• ⭐ メニーリーチ: Pay-per-use sending with spintax support, useful when volume swings month to month.
• 🧠 ウォーミー: AI warm-up plus deliverability consulting, aimed at fixing accounts already in trouble.

全リストについては、こちらをご覧ください。 Maildosoの代替 ガイド。

⚔️ Maildoso を比較

Here is how Maildoso stacks up against each competitor:

• Maildoso vs Instantly: Instantly sends campaigns; Maildoso supplies the domains and mailboxes underneath. Most teams run both together.
• Maildoso vs Snov: Snov finds leads and sends. Maildoso wins on email infrastructure and domain control.
• マイルドソ対アポロ: Apollo owns the data layer. Maildoso wins when you need private inboxes and better deliverability.
• Maildoso vs Hunter IO: Hunter is for finding addresses. Maildoso is for making sure your messages arrive.
• Maildoso と Reply IO: Reply covers multichannel sequences. Maildoso covers the sending accounts those sequences use.
• Maildoso 対 UpLead: UpLead sells contact data only. Maildoso handles mailbox setup and inbox placement instead.
• Maildoso 対 Mailshake: Mailshake is easier for beginners. Maildoso gives far more control over ip addresses.
• Maildoso 対 Lemlist: Lemlist wins on creative personalization. Maildoso wins on high deliverability and bulk domain setup.
• マイルドソ対ウッドペッカー: Woodpecker suits agencies managing client accounts. Maildoso suits teams scaling their own outbound campaigns.
• Maildoso 対 Smartlead: Smartlead includes basic mailboxes. Maildoso offers dedicated domains built specifically for cold outreach.
• Maildoso 対 Saleshandy: Saleshandy is cheaper per seat. Maildoso is the stronger cold email solution for infrastructure.
• マイルドソ対クレンティ: Klenty focuses on CRM workflows. Maildoso focuses on domains, mailboxes, and reputation.
• Maildoso vs Warmbox: Warmbox only warms existing accounts. Maildoso creates the accounts and warms them too.
• Maildoso 対 Manyreach: Manyreach charges per email sent. Maildoso charges per mailbox, which suits steady volume better.
• Maildoso vs Warmy: Warmy fixes damaged sender reputation. Maildoso prevents the damage with fresh secondary domains.

今すぐMaildosoを使い始めましょう

Maildosoの主要な機能をすべて使いこなせるようになりました。

• ✅ 連携機能
• ✅ ウォームアップフィルター
• ✅ CRM
• ✅ マスター受信箱
• ✅ ドメイン管理
• ✅ AI搭載のウォーミングアップ
• ✅ 自動セットアップ
• ✅ カスタムトラッキングドメイン
• ✅ 専用メールボックス

次のステップ： どれか一つの機能を選んで、今すぐ試してみてください。

ほとんどの人は自動設定から始めます。

5分もかかりません。

よくある質問

Maildosoはどのように機能しますか？

Maildoso buys or connects secondary domains, then builds authenticated mailboxes on them. It handles SPF, DKIM, and DMARC, warms the accounts, and feeds them to your sending tool.

Maildosoは使いやすいですか？

Yes for setup, which takes minutes. DNS troubleshooting is the harder part, and some users report friction connecting purchased domains to outside services.

Is Maildoso good for 中小企業?

Only if you send real volume. The entry plan covers 32 mailboxes at $100 per month, which is heavy for occasional outreach.

Maildosoはトランザクションメールに使用されますか？

No. Maildoso builds cold email infrastructure on secondary domains. Send receipts and password resets through your normal email provider instead.

Maildosoの使い方は？

Create mailboxes, confirm the DNS records, run a 14-day warm-up, then connect Maildoso to Instantly or Smartlead and start sending.