Setting Up Your Green Party Email On iPhone Or iPad

Who This Is For

This guide is for local party officers and volunteers who need to add their Green Party email account to the built-in Mail app on iPhone or iPad. If you are setting up on a Mac, see Setting Up Your Green Party Email In Apple Mail (Mac) instead. If you prefer the Outlook app, see Setting Up Your Green Party Email In Outlook Mobile.

This article was last updated September 2026. If you think it needs an update let us know by using the feedback buttons at the bottom of the article.

Norm Cassidy Digital Support Manager

This guide covers adding your Green Party email to the default Mail app on iOS. The setup is done through your device's Settings app, not inside Mail itself.

If you have done this before and need the server details, skip to the quick settings reference below.

Setting up on a different device or app?

Quick Settings Reference

Setting	Value
Account type	IMAP
Incoming server	imap.stackmail.com
Outgoing server	smtp.stackmail.com
Outgoing port	587
Outgoing SSL	On
Username	Your full email address
Password	Your mailbox password

If you need the full walkthrough, read on.

Before You Start

Use IMAP, not POP3
When asked to choose an account type, always select IMAP. Do not select POP3 - it downloads emails to a single device and can remove them from the server, which means other devices and webmail will no longer see them. If you are not sure what this means, see Should I Use POP3 or IMAP For My Green Party Email?

You will need three things:

Your Green Party email address (e.g. yourrole@localparty.greenparty.org.uk).
The password you were given, or that you set through webmail.
An iPhone or iPad with the built-in Mail app.

Setting Up Your Email

Open Settings on your device.
Tap Apps > Mail > Mail Accounts.
Tap Add Account > Other > Add Mail Account.
Enter your name, your full Green Party email address, your mailbox password and a description for the account.
Select IMAP.
Under Incoming Mail Server, enter:
a. Host Name: imap.stackmail.com
b. User Name: your full email address
c. Password: your mailbox password
Under Outgoing Mail Server, enter:
a. Host Name: smtp.stackmail.com
b. User Name: your full email address
c. Password: your mailbox password
Save the account, then open it again and tap Outgoing Mail Server > Primary Server.
Make sure SSL is switched on and the server port is 587.

Verifying It Worked

Open the Mail app. Your Green Party inbox should appear under the account name you chose. Emails will start syncing - this may take a moment. Send a test email to yourself to confirm both sending and receiving work.

Troubleshooting

Authentication keeps failing: Make sure the username is your full email address for both incoming and outgoing mail, and check the mailbox password.

Mail is not loading emails: Check your Wi-Fi or mobile data connection. If the connection is working, go to Settings > Apps > Mail > Mail Accounts > your account and check the settings against the quick reference table.

Can receive but cannot send: Go to your account settings, then Outgoing Mail Server > Primary Server. Check that the server is smtp.stackmail.com, SSL is on and the port is 587.

If none of these solves it, raise a ticket and include your device type, iOS or iPadOS version, and any error messages you see.

Next Steps

Jargon Buster

Changelog

Next Steps

Setting Up Your Green Party Email In Apple Mail (Mac) - if you also want email on your Mac
Accessing Your Green Party Email Through Webmail - check email in a browser
Creating an Email Signature - set up a consistent signature

Stuck? Raise a ticket and we will take a look.

As helpful a bunch as we are, sometimes it's worth going straight to the official guides.

Official iPhone Mail Guides

Jargon Buster

Term	Meaning
IMAP	Internet Message Access Protocol. Keeps your emails on the server and syncs them across all your devices. The recommended option.
POP3	Post Office Protocol. Downloads emails to one device and (usually) removes them from the server. Not recommended unless you have a specific reason.
SMTP	Simple Mail Transfer Protocol. The system used for sending outgoing email.
SSL/TLS	Encryption that protects your email data in transit between your computer and the server.
Stackmail	The email hosting service used by the Green Party, provided by 20i.

Changelog

Date	Change
September 2026	Updated to match 20i's current iPhone and iPad Mail setup instructions. Formatting fixes for compatibility with the new theme.
June 2026	Article published. Covers Apple Mail on iOS 16 and later.