Unable to send email to external reviewer

[Perficient-DomKenney]

When creating the external review link, the share button correctly pulls up the email modal & I am able to populate this.

However, once I hit the send button it fails to ever send out.

This appears to be happening on multiple clients, and their configuration regarding AdvancedReviews is the same as the test provided in this repo (so far as I have been able to identify).

[barteksekula]

Hi, any callstack?

[Perficient-DomKenney]

The only error I receive is the following output from Application Insights:

{
  "name": "AppRequests",
  "time": "2024-05-06T17:14:43.8227581Z",
  "iKey": "a230e1d2-20b6-49a4-ac58-8e63aeb4bd84",
  "tags": {
    "ai.application.ver": "6.0.0.0",
    "ai.cloud.roleInstance": "localhost",
    "ai.user.id": "VUGN4GI7HHz1ONBtJiwBIR",
    "ai.operation.id": "7e0a2144ace8e5fba7c9738c8eb0114b",
    "ai.operation.name": "POST /EPiServer/advanced-cms-external-reviews/Stores/externalreviewstore/45bb7064-3cce-426a-a2ee-657ef17530ae",
    "ai.location.ip": "127.0.0.1",
    "ai.internal.sdkVersion": "aspnet5c:2.21.0+5e2e7ddda961ec0e16a75b1ae0a37f6a13c777f5",
    "ai.internal.nodeName": "localhost"
  },
  "data": {
    "baseType": "RequestData",
    "baseData": {
      "ver": 2,
      "id": "def65d17006d0586",
      "name": "POST /EPiServer/advanced-cms-external-reviews/Stores/externalreviewstore/45bb7064-3cce-426a-a2ee-657ef17530ae",
      "duration": "00:00:00.0325029",
      "success": false,
      "responseCode": "400",
      "url": "https://localhost:44338/EPiServer/advanced-cms-external-reviews/Stores/externalreviewstore/45bb7064-3cce-426a-a2ee-657ef17530ae",
      "properties": {
        "AspNetCoreEnvironment": "Local",
        "_MS.ProcessedByMetricExtractors": "(Name:'Requests', Ver:'1.1')",
        "DeveloperMode": "true"
      }
    }
  }
}

No breakpoints or logs are generated on any DXP environment, but debugging locally I can see this. This is the only fragment related to this behavior I have been able to identify.

[Perficient-DomKenney]

Hi @barteksekula,

Is there any additional information I should obtain to assist with identifying a cause for this?

[barteksekula]

@Perficient-DomKenney sorry, holidays were a bit busy
Please try to add this line to any test controller in your app
https://github.com/advanced-cms/advanced-reviews/blob/master/src/Advanced.CMS.ExternalReviews/ReviewLinksRepository/ExternalReviewStore.cs#L147

Does it work?
We do not have any email logic inside advanced-reviews, just reusing INotificationProvider from EPiServer.

[Perficient-DomKenney]

I am testing this now, however we have confirmed last week that emails coming from EPiServer Forms are still working without issue. I am uncertain if this would indicate any further context, but it feels relevant to this while I test this scenario.

[Perficient-DomKenney]

@barteksekula Using that line to send an email fails, and this is the exception that is populated from the message error state:

09/10/2024 12:29:29 Failed to send email
MailKit.Net.Smtp.SmtpProtocolException: The SMTP server has unexpectedly disconnected.
   at MailKit.Net.Smtp.SmtpStream.ReadAheadAsync(Boolean doAsync, CancellationToken cancellationToken)
   at MailKit.Net.Smtp.SmtpStream.ReadResponseAsync(Boolean doAsync, CancellationToken cancellationToken)
   at MailKit.Net.Smtp.SmtpClient.SendCommandAsync(String command, Boolean doAsync, CancellationToken cancellationToken)
   at MailKit.Net.Smtp.SmtpClient.AuthenticateAsync(Encoding encoding, ICredentials credentials, Boolean doAsync, CancellationToken cancellationToken)
   at EPiServer.Notification.Internal.SmtpClientImplementation.SendAsync(MimeMessage message)
   at EPiServer.Notification.Internal.EmailNotificationProvider.SendAsync(IEnumerable`1 messages, Action`1 succeededAction, Action`2 failedAction)