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Updated on October 5, 2023

How to Configure SMTP Settings On IPhone Mail App

Having trouble sending emails with your iPhone? There may be a few reasons such as a server connection failure, login issue, or it may be because the SMTP for email has not been set up correctly. If it’s SMTP settings you need help with, you’re in luck.

This article will help you in setting up your SMTP for email in iPhone, so you can always be connected to your business email accounts.


When you set up a domain-specific email account on your iPhone, you may have skipped through the Optional parts. Here’s how it would usually look:

smtp for email settings optional fields

Even though it says “Optional”, the username and password are required to authenticate your credentials with the server, and allow sending and receiving of emails.


1. Go to Settings.

iphone settings icon


2. Scroll down and find the Mail settings. Click to go to the next window.

iphone settings mail


3. Click on the account you will set up SMTP for email.

iphone mail settings select email account


4. On the next window, click again on the email account you will be updating.

smtp for email imap settings


5. Under Outgoing mail server, click on SMTP.

click smtp email settings


6. Then click on the primary server (

primary server smtp for email settings


7. Type in your hosted email account’s username (your email address) and password.

add username and password to complete smtp for email settings


8. If you have entered the correct username and password, the account will be verified and authenticated with your mail server.

smtp for email imap settings authenticated and verified


Note: When you come to Step 8 you will need to put in your own settings unique to your domain.

Username: [email protected]
Password: [email protected]
Port: 465/587
SSL: Yes
Protocol: SMTP


9. You can now try to send your emails again! If the issue still persists, contact us and we’ll be happy to help you out.


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