Hi chunheng ,

Did you happen to look through Nectari's Online help and HTG website? they also post fixes and stuff on there

onlinehelp.nectari.com/.../Home.htm

yes but I could not find it by sending in the error message.

Uniquely, the SMTP credentials:

SEI SMTP Server: Doesn't work. Triggered the errors.
Powershell (not 7) using built-in send mail: Timed out 
Sage X3's Notification Server: Works fine.

awe ok. if your configured for HTTPS SEI SMTP won't work with HTTPS configuration. That's on their roadmap to add to SEI.

If you are using oAuth or any other secondary security auth it also wont work with SEI

If you cannot figure it out, you may need to open a case with local support

I am using a Reverse Proxy server to handle the HTTPS's TLS termination.

SEI is using HTTP and confirmed from my local SEI install which have same architecture that I can send email.

Additionally, if I do the password reset in my workstation's browser, I get immediately given:

```

Unable to reset the user's password, an unexpected error occurred.

```

From the Web Server log:

```

2024-07-12 14:08:30.981 +08:00 [Warning] [WebClient] <Account/SendResetPasswordLink>
{"SourceContext":"NectariComponents.MvcApplication","ThreadId":359,"HttpRequestId":"25232b6d-3c3e-4641-b43b-375464e769e2"}
Unable to reset the user's password, an unexpected error occurred.

2024-07-12 14:08:31.852 +08:00 [Warning] [WebClient] <Account/SendResetPasswordLink>
{"SourceContext":"NectariComponents.MvcApplication","ThreadId":330,"HttpRequestId":"ca782f3b-746e-4659-bc22-3f059c951254"}
Unable to reset the user's password, an unexpected error occurred.

2024-07-12 14:08:32.403 +08:00 [Warning] [WebClient] <Account/SendResetPasswordLink>
{"SourceContext":"NectariComponents.MvcApplication","ThreadId":275,"HttpRequestId":"e29e2cb0-2d32-4505-a2bb-c761a1fc7c35"}
Unable to reset the user's password, an unexpected error occurred.

```

Case opened, SEI team diverted problem back to me that it is SMTP provider problem based on following information from Powershell.

```

Send-MailMessage : The operation has timed out.
At line:1 char:1
+ Send-MailMessage –From [email protected] –To [email protected] ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (System.Net.Mail.SmtpClient:SmtpClient) [Send-MailMessage], SmtpExcept
ion
+ FullyQualifiedErrorId : SmtpException,Microsoft.PowerShell.Commands.SendMailMessage

```

For reference, my SMTP provider requested me to use port 465 rather than the usual port 587 and I did not receive any TLS certificate from SMTP provider.

Swapping port from 465 to 587 worked.