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How to Add Your Own Email Service (SMTP)

The platform allows you to connect your own third-party email sending service (SMTP) instead of using the default LeadConnector Email System. This is useful if you already have an established sending reputation, need higher volume limits, or prefer t

Last updated: May 26, 2026


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On this page

  • Where to Find Email Services
  • Default vs. Custom Email Service
  • Supported SMTP Providers
  • Step-by-Step: Adding a Custom SMTP Service
  • Common SMTP Settings Reference
  • Important: Limitations of Third-Party SMTP
  • Enable Reply for SMTP
  • Switching Back to LeadConnector
  • Frequently Asked Questions

In this folder

  • Dedicated Email Sending Domains Overview & Setup
  • Google Dedicated Sending Domain Setup (LC Email)
  • GoDaddy Dedicated Sending Domain Setu (LC Email)
  • Siteground Dedicated Sending Domain Setup (LC Email)
  • Deleting Your LC Email Sending Domain
  • LC Email - Complete Guide to Dedicated IP
  • Default Headers for Dedicated Sending Domains
  • Sending Priority - From Name & Address
  • Email Services Configuration - Reply & Forward Settings
  • List of all outgoing system generated emails
  • How to Filter Contacts by Email Statistics
  • Introducing Enhanced Sub-Account Filtering: Manage Email Providers with Ease!
  • Bot Detection Preventing Statistics Increment and Automation Execution
  • Enhanced Email Verification for Campaigns!
  • AI Schedule for Smarter Email Timing (Smart Send Time Optimization)
  • Email AI (Beta 2.0) — Create On-Brand Emails Faster
  • Email Blocking for Invalid or Restricted Recipient Domains
  • Domain Removal Blocked Due to Active Campaign Assignment
  • An Introduction To Email Deliverability
  • Workflow Action based on Email Event Clicked/Opened
  • Why Are My Emails Going To Spam?
  • What is Email Deliverability? - A Guest-Tutorial From Krystin Ruschman of Email-2-Inbox
  • What Email Deliverability Stats Should I Look For?
  • How List-Unsubscribe helps email deliverability
  • Achieving Compliance: Meeting Google and Yahoo's Email Sender Requirements in 2024
  • How to Resubscribe After Unsubscribing from an Email List
  • Creating and Managing Custom Unsubscribe Links
  • Preference Management (Email Unsubscription Management)
  • What is LC Email?
  • How to Migrate My Agency Over to LC - Email

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