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Fix: If SMTP port is 25, SSL shouldn't be used

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nicolas.dorier 2022-06-27 10:53:15 +09:00
parent 95b9e4dfd9
commit 9423bc4ea7
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1 changed files with 4 additions and 1 deletions
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BTCPayServer/Services/Mails/EmailSettings.cs
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@ -75,7 +75,10 @@ namespace BTCPayServer.Services.Mails
client.ServerCertificateValidationCallback = (s, c, h, e) => true;
#pragma warning restore CA5359 // Do Not Disable Certificate Validation
}
await client.ConnectAsync(Server, Port.Value, MailKit.Security.SecureSocketOptions.Auto, connectCancel.Token);
var sslOptions = MailKit.Security.SecureSocketOptions.Auto;
if (Port is int p && p == 25) // Workaround for https://github.com/jstedfast/MailKit/pull/1398
sslOptions = MailKit.Security.SecureSocketOptions.None;
await client.ConnectAsync(Server, Port.Value, sslOptions, connectCancel.Token);
if ((client.Capabilities & SmtpCapabilities.Authentication) != 0)
await client.AuthenticateAsync(Login ?? string.Empty, Password ?? string.Empty, connectCancel.Token);
}