iOS URL Scheme Microsoft Outlook App

Question

This seems impossible to find, unless perhaps there isn\'t one for it. But anyone know (if there is one) the iOS URL Scheme for opening the Microsoft Outlook Mobile App rig

Answer 1

Swift

func outlookDeepLink(subject: String, body: String, recipients: [String]) throws -> URL {
    
    enum MailComposeError: Error {
        case emptySubject
        case emptyBody
        case unexpectedError
    }
    
    guard !subject.isEmpty else { throw MailComposeError.emptySubject }
    guard !body.isEmpty else { throw MailComposeError.emptyBody }
    
    let emailTo = recipients.joined(separator: ";")
    
    var components = URLComponents()
    components.scheme = "ms-outlook"
    components.host = "compose"
    components.queryItems = [
        URLQueryItem(name: "to", value: emailTo),
        URLQueryItem(name: "subject", value: subject),
        URLQueryItem(name: "body", value: body),
    ]
    
    guard let deepURL = components.url else { throw MailComposeError.unexpectedError }
    return deepURL
}

Usage

try! UIApplication.shared.open(
    outlookDeepLink(
        subject: "subject",
        body: "body",
        recipients: ["example@email.com", "example2@email.com"]
    )
)

Note that:

1. Don't forget to tell iOS you are going to call ms-outlook. (Add it to LSApplicationQueriesSchemes in info.plist, Otherwise, You will get an clear error message in console if you forget it)

2. Also don't forget to check if the app actually exists before trying to open the url. (canOpenURL is here to help)