Sending mail with INDY/DELPHI , modify values without restrictions - delphi

Question

I'm sending E Mails with INDY 10 components with the following code :
try
MyNewIndyMessage.From.Address := edFrom.Text;
MyNewIndyMessage.Recipients.EMailAddresses := edTo.Text;
MyNewIndyMessage.CCList.EMailAddresses := edCC.Text;
MyNewIndyMessage.BCCList.EMailAddresses := edBCC.Text;
MyNewIndyMessage.Subject := edSubject.Text;
MyNewIndyMessage.Body := edContent.Lines;
MyIndySMTP.Send(MyNewIndyMessage);
finally
MyIndySMTP.Disconnect;
end;
Indy smtp requests me to enter a valid organisation in the Message.from.address like "myname#companyX.com" , I wouöld like to enter here and arbitray string like "This mail is urgent to read".
Can I bypass such check done in my INDY SMTP components ?

Answer 1

According to the Internet Message Format specification (RFC 2822), the From field must contain a valid mailbox, which normally is (section 3.4):
Normally, a mailbox is comprised of two parts: (1)
an optional display name that indicates the name of the recipient
(which could be a person or a system) that could be displayed to the
user of a mail application, and (2) an addr-spec address enclosed in
angle brackets ("<" and ">"). There is also an alternate simple form
of a mailbox where the addr-spec address appears alone, without the
recipient's name or the angle brackets.
An example of this may be like this:
John Doe <john.doe#example.com>
As implied, mail clients usually display the (optional) name attribute if present, and the address itself if a name is not present.
In INDY terms, the TIdEMailAddressItem have three properties, which are always in sync:
Address is the address-spec part of the mailbox, for example: john.doe#example.com
Name is the name part of the mailbox, for example: John Doe
Text have both parts, for example: John Doe <john.doe#example.com>
You can change one of that and the others will reflect the same changes.
So, you can do what you want by setting the Text property directly, like this:
MyNewIndyMessage.From.Text := 'This mail is urgent to read <myname#companyX.com>';
Or you may want to set each one separately:
MyNewIndyMessage.From.Address := 'myname#companyX.com';
MyNewIndyMessage.From.Name := 'This mail is urgent to read';
All this said, you may want to use that name as the subject (along with some more info), and not really as the name, but that's up to you.