Email Client Settings - DigitalFyre Knowledge Base

Use the following settings to configure any desktop or mobile email client (Outlook, Thunderbird, Apple Mail, iOS Mail, Gmail app, etc.) with your Open-Xchange mailbox. These settings are also available in the customer portal under Manage Email Accounts → Email Client Settings.

Server Settings

Setting	Value
Incoming Server (IMAP)	`imap.us.appsuite.cloud`
IMAP Port	`993` (SSL/TLS)
Incoming Server (POP3)	`pop.us.appsuite.cloud`
POP3 Port	`995` (SSL/TLS)
Outgoing Server (SMTP)	`smtp.us.appsuite.cloud`
SMTP Port	`465` (SSL/TLS)
Username	Your full email address (e.g., `user@example.com`)
Password	Your email account password
Authentication	Required for IMAP, POP3, and SMTP

IMAP vs. POP3

	IMAP	POP3
Sync across devices	Yes — read, deleted, and moved messages sync everywhere	No — changes on one device do not reflect on others
Email stays on server	Yes	No — email is downloaded and removed from the server
Recommended	Yes, for most users	Only if you need offline-only access on a single device

Encryption

Always use SSL/TLS encryption. The server settings above all use encrypted connections by default. Do not use unencrypted connections or non-standard ports.