SMTP settings for any device

Every device labels the fields a little differently, but they always ask for the same things. Before you start, create a credential for the device in the dashboard and keep the username and password to hand: the password is only shown once.

The details to enter

Field	Value
SMTP server (or outgoing mail server)	mail.smtp365.it
Port	587
Encryption	STARTTLS (sometimes shown as "TLS")
Authentication	On (SMTP AUTH, "server requires authentication")
Username	the credential's username, exactly as shown in the dashboard
Password	the credential's password
Sender address	the address authorised for the credential

smtp365 sends from the Microsoft 365 mailbox via Microsoft Graph, using delegated permissions. You do not need to change SPF, DKIM or DMARC.

Do not use the username and password of your Microsoft 365 account: the device should only use the credential created for it.

Which port to choose

• 587 with STARTTLS is the recommended choice and requires the device to support STARTTLS.
• 465 with implicit TLS (often labelled "SSL" or "SSL/TLS") is fine if it is the only option the device offers. The connection is encrypted from the start.
• 25 may be needed on some legacy devices. It is available only on request and is off by default: it must be enabled in the dashboard for both the mailbox and the individual credential. Many internet providers block outbound traffic on port 25, so check it works before relying on it.

If the device asks you to choose between "SSL" and "TLS" without mentioning the port, "SSL" usually goes with 465 and "TLS" with 587. Always check the model's manual: a simple SSL/TLS switch may select the mode based on the port.

The sender

Each credential can only send from its own address: the address of the connected mailbox or, if you have set one up, a shared mailbox verified with a test message. If the device uses any other address as the sender, the server rejects the message.

Some devices have two separate fields, such as "device address" and "display name". The display name can be anything you like: you could write "Second floor scanner" and recipients will see exactly that.

Sent Items

By default every message appears in the mailbox's Sent Items folder. For devices that only send notifications (alarms, NAS, backups) you can turn this off on the credential to keep the mailbox tidy.

Business software, ERP and custom applications

In business software, the email settings are usually found under names such as "Email parameters", "SMTP configuration" or "Sending account". Enter the same details as in the table. If the program supports several accounts, create a separate credential for each department or function: the sending log will then show at a glance who sent what.

Send a test

Use the device's test function if available. Otherwise, send a scan or a notification to your own address. The sending log in the dashboard shows whether the message was accepted for sending and the reason for any recorded failure. Also check receipt: acceptance does not guarantee delivery.