This service is NOT for mail MARKETING.
Abuse of it may result in account blocking.

Username and password

The username is the institutional email xxx@derosemethod.org

The password was sent to your email with a subject starting with "SMTP - “

From your GMAIL

See this Google article:

Send emails from a different address or alias - Gmail Help

Request the “SMTP server” from Contact.

Thunderbird

Download: Thunderbird — Free Your Inbox.

Setup: Mozilla Thunderbird SMTP Setup

Apple Mail (MacOS)

Apple Mail (MacOS) with ImprovMX SMTP

Apple Mail (iOS - iPhone/iPad)

Apple Mail (iOS) with ImprovMX SMTP

Microsoft Outlook ( incompatible )

Microsoft Outlook is a very popular email client, but unfortunately it is not compatible with our email sending service. The problem is due to the way Outlook manages sending and receiving accounts: it does not allow configuring them separately.

Microsoft Outlook and ImprovMX Incompatibility

We recommend using Thunderbird (see above).