About Email Warmup

Last updated: November 7, 2025

Amplemarket Email Warmup is Amplemarket’s deliverability optimisation service that helps you build, protect and optimize your email deliverability - by automating healthy and good engagement in your mailboxes.

How it works

Amplemarket Email Warmup will automatically start and reply to multiple threads on your behalf.

During the warm-up process, the system engages in multiple email threads with other mailboxes in the network, exchanging messages at random intervals. As these conversations progress, your daily email volume can reach up to a few hundred individual messages per day.

When to use

  • Build Reputation for Recently Created Domains/Mailboxes: Email Warmup is a safe way to start building a good domain reputation. Recent created domains/mailboxes are more exposed to deliverability problems because they lack history or reputation. Email Warmup automatic threads will show to mailbox providers there is activity happening in that mailbox.

  • Protect and Maintain Domain Reputation for older Domains/Mailboxes: for older domains and mailboxes, Email Warmup will help you maintain and protect good domain/mailbox reputation, by giving your domain/mailbox a chance to even out its sent-received ratio alongside your sequences.

  • Damage Control for Domains/Mailboxes flagged as SPAM: Email Warmup, alongside other deliverability best practices, may help you recover your domain reputation faster in case your domain/mailbox is flagged as spam.

Enable Email Warmup

  1. Login in to your Amplemarket Account

  2. Click Account Settings in your left sidebar

  3. Click Email Warmup under User Settings

  4. Switch it on to Enabled in WARMUP Column

Troubleshooting Connection Issues: If Google blocks the connection as a security measure, you may see an error when trying to connect. To resolve this, follow the steps in this article to grant Amplemarket the necessary permissions to access your account.

Note: IMAP would need to be enabled under your IMAP Enabling SMTP/IMAP settings for Google

If you have a Google Account, you can use the Google Oauth for a quick and easy connection. Follow this interactive guideflow.

Alternatively, if you would like to connect via SMTP/IMAP and App passwords, follow the instructions in this article:

Enabling SMTP/IMAP settings for Google

Recommended: Configure inbox filters

After enabling Email Warmup we recommend configuring inbox filters to keep your inbox clean.

Setting up the filter for G-Suite accounts

  1. Login into your Gmail Account

  2. Copy the following string: amplemarketwarmupemail:

  3. Click on the icon Show Search Option on the right side of your Gmail search bar

  4. Paste the string you copied in Step 2 in the Subject field

  5. Click Create filter

  6. Enable the following actions: Skip the inbox (Archive it), Mark as read, Never send it to Spam and Always mark it as important.

  7. Click Create filter

For additional support on how to create a filters, see this Gmail's Help Center article.

Setting up the filter for Outlook accounts

  1. Login into your Outlook Account

  2. Copy the following string: amplemarketwarmupemail:

  3. Go to Mail Settings

  4. Click on the Add a condition select Subject includes and paste the string you copied on Step 2

  5. Add actions: Mark as read, Move to: Archive, Mark with importance: High

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