---
title: "How to connect any Custom SMTP?"
description: "Bring your own custom SMTP"
url: https://help.e-warmup.com/en/articles/41-how-to-connect-any-custom-smtp
collection: "Connection Guides"
updated: 2026-11-03
language: en
---

# How to connect any Custom SMTP?

Bring your own custom SMTP

**Configure any Custom SMTP for warmup**

E-Warmup supports **any SMTP provider** (self-hosted servers, other ESPs, etc.) via custom SMTP settings. This is perfect for providers without a dedicated integration.

### Prerequisites

-   Access to your SMTP provider/server settings (host, port, credentials).
    
-   Valid SMTP username and password (or API key where applicable).
    
-   Valid IMAP
    

### Step 1: Gather Your SMTP Details

Collect the following information from your SMTP provider (check their documentation or dashboard):

-   **SMTP Host** (e.g., SMTP Host or Server Host)
    
-   **SMTP Port** (commonly 587 for TLS or 465 for SSL)
    
-   **SMTP Username** (your email address, login, or username)
    
-   **SMTP Password** (your password or full API key)
    

**Not sure about these?**

-   if you are using any 3rd party SMTP Provider then check their Help Center or Documentation or contact them to get above SMTP details.
    
-   Self-hosted: Your server IP/domain and credentials
    

Note: You can **bring** any SMTP provider and connect to E-Warmup using this: Postmnark, Sparkpost, Sendx, Mailpipe, Mandrill,Ongage, Maropost, Campaigner, Expertsender, SMTP.com, Mailjet, Elastic email, sendpulse, amazon ses, GHL and many more.

### Step 2: Gather Your IMAP Details

Collect the following information from your IMAP provider (check their documentation or dashboard):

-   **IMAP Host** (e.g., Server host or IMAP host)
    
-   **IMAP Port** (993 or 143)
    
-   **IMAP Username** (your email address)
    
-   **IMAP Password** (your password or full API key)
    

### Step 3: Connect in E-Warmup

1.  Log into your E-Warmup dashboard.
    
2.  Go to the connection / add inbox section.
    
3.  Select **Custom SMTP** (or **Other / Manual SMTP**).
    
4.  Fill in the fields with your SMTP & IMAP details.
    
5.  Connect.
    

![](https://staticfiles.gleap.io/ghelparticle/vwK6rAsursR7wbfLeawZqUB1WwQ8ifoOfHF9GQEsPEAf2Z2vCft3lWLacUtSHo0KMLDaPFpfUGX.png)

DONE !!

  
P.S: If you are facing difficulties or not familiar with this technical setup, you can schedule a call with us or email at [support@e-warmup.com](mailto:support@e-warmup.com)