Unable to open MailCompose View in iOS

[vivek-gunasekaran]

I recently upgraded to RN 60.2 and react-native-mail 6.0.0 and encountered this issue. When the Mailer.mail({ }) API is triggered, it doesn't do anything on the iOS device. Android works as expected and iOS simulator fails with the expected error message. iOS version is 13.5

When I inspected the console logs, I see that the request to open the mail compose view is suspended immediately upon request.

        SpringBoard	[FBSystemService][0xdc97] Received request to open "com.apple.MailCompositionService" from myApp:1112.
	SpringBoard	[FBSystemService][0xdc97] Trusting whitelisted background activation from myApp:1112.
	SpringBoard	Received trusted open application request for "com.apple.MailCompositionService" from <FBApplicationProcess: 0x100398c30; application<myApp>:1112>.
	SpringBoard	Executing request: <SBMainWorkspaceTransitionRequest: 0x283db1300; eventLabel: OpenApplication(sceneID:com.apple.MailCompositionService-default)ForRequester(myApp.1112); display: Main; source: FBSystemService>
	SpringBoard	Executing suspended-activation immediately: OpenApplication(sceneID:com.apple.MailCompositionService-default)ForRequester(myApp.1112)
	myApp	Creating service facility connection with <BSServiceConnectionEndpoint: 0x2835b33c0; target: com.apple.frontboard.systemappservices; service: com.apple.frontboard.system-service>
	myApp	[FBSSystemService][0xdc97] Sending request to open "com.apple.MailCompositionService"
	myApp	[FBSSystemAppProxy:0x280b61c00] Service facility connection invalidated
	SpringBoard	[FBSystemService][0xdc97] Request complete; no error reported.
	SpringBoard	[sceneID:com.apple.MailCompositionService-default] Sending scene action [SceneLifecycleEventOnly][0xfd02] through WorkspaceServer: 0x2807dfac0
	SpringBoard	[sceneID:com.apple.MailCompositionService-default] Scene activity state did change: BackgroundActive.
	runningboardd	Acquiring assertion targeting application<com.apple.MailCompositionService> from originator [application<myApp>:1112] with description <RBSAssertionDescriptor; com.apple.viewservice.session; ID: 28-1112-3915; target: application<com.apple.MailCompositionService>> attributes = {
    <RBSLegacyAttribute: 0x1058da730; requestedReason: ViewService; reason: ViewService; flags: AllowIdleSleep | PreventTaskSuspend | PreventTaskThrottleDown | WantsForegroundResourcePriority>;
    <RBSAcquisitionCompletionAttribute: 0x1058aba30; policy: 0>;
}
	runningboardd	Assertion 28-1112-3915 (target:application<com.apple.MailCompositionService>) will be created as active
	runningboardd	Acquiring assertion targeting application<com.apple.MailCompositionService> from originator [daemon<com.apple.SpringBoard>:56] with description <RBSAssertionDescriptor; "FBScene (BackgroundActive) <sceneID:com.apple.MailCompositionService-default>"; ID: 28-56-3916; target: 379> attributes = {
    <RBSRunningReasonAttribute: 0x1047dd200; runningReason: 10001>;
    <RBSDefineRelativeStartTimeGrant: 0x1047de590>;
    <RBSGPUAccessGrant: 0x104739e90>;
    <RBSCPUAccessGrant: 0x1047ffec0; role: NonUserInteractive>;
    <RBSJetsamPriorityGrant: 0x1047e5ba0; priority: Background>;
    <RBSDurationAttribute: 0x1047a8e40; invalidationDuration: 20.00; warningDuration: 0.00; startPolicy: Fixed; endPolicy: Invalidate>;
    <RBSResistTerminationGrant: 0x1047f94f0; terminationResistance: NonInteractive>;
}
	runningboardd	Assertion 28-56-3916 (target:application<com.apple.MailCompositionService>) will be created as active
	myApp	[FBSSystemService][0xdc97] Request successful: <BSProcessHandle: 0x28354a400; MailComposition:379; valid: YES>

Any idea what might be happening? I wanted to reach out to the community to see if someone else is encountering this issue or this is a user error on my end.

[aswin9339]

There is no email client in ios emulator. Please try it in real device

[vivek-gunasekaran]

This was tested on an iPhone, the logs snippet is for the same.

[ghost]

@vivek-gunasekaran This library using MF Mail composer. So for using mail in iPhone device you have to configure mail app in your device then only it will work. Please check if mail app is configured or not as below
https://support.apple.com/en-in/HT201320