Cold Email With Outlook & Microsoft 365, Bulk Email Boxer

Outlook cold email with automated sequences and warmup.

Bulk Email Boxer handles Microsoft SMTP setup and warms your Outlook domain before sending campaigns.

Connect Outlook free →

The problem

Outlook and Microsoft 365 SMTP settings are complex and sequences break when Microsoft's spam filters flag the domain.

The solution

Bulk Email Boxer handles Microsoft SMTP setup and warms your Outlook domain before sending campaigns.

Everything you need, included

  • Outlook.com and Microsoft 365 SMTP support
  • Microsoft OAuth or app password authentication
  • Warmup for Microsoft domains before campaign launch
  • Sequences within Microsoft's daily sending limits
  • Reply detection via Outlook IMAP
  • Multi-sender support for Microsoft 365 accounts

Simple, flat pricing

Starter: $40/mo · Growth: $90/mo · Scale: $350/mo

All plans include warmup, sequences, A/B testing, and reply tracking. No per-seat fees.

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How it works

Connect your email account, import your contacts, build a sequence, and launch. Warmup runs automatically. Replies land in your unified inbox.

Try Bulk Email Boxer free →