OnHostUnreachable event
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OnHostUnreachable event
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| SendMail component.
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| property OnHostUnrachable: TNotifyEvent;
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| The OnHostUnreachable event occurs if the SendMail can not establish connection to SMTP server, specified in SMTPHost property. Possible reasons of this problem is:
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| 1. | User currently not connected to the Internet;
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| 2. | Hostname is unknown (check spelling of domain name in SMTPHost property);
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| 3. | Invalid SMTP port specified (check the number of SMTP port in SMTPPort property);
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| 4. | Remote server is down (disconnected from Internet).
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| procedure TForm1.SendMail1HostUnreachable(Sender: TObject);
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| begin
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| Application.MessageBox(PChar('Specified SMTP server is unreachable.'#13#10#10'Please check your Internet connection'#13#10'or specify another SMTP host or/and port.'),
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| PChar(Application.Title),
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| MB_OK or MB_ICONSTOP);
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| end;
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| void __fastcall TForm1::SendMail1HostUnreachable(TObject *Sender)
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| {
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| AnsiString Msg =
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| "Specified SMTP server is unreachable.\n\n"
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| "Please check your Internet connection\n"
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| "or specify another SMTP host or/and port.";
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| Application->MessageBox(Msg.c_str(),
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| Application->Title.c_str(),
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| MB_OK | MB_ICONSTOP);
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| }
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| SMTPHost and SMTPPort properties;
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| OnAnyError event.
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