I am currently working on a microservice that runs on DotNet6 and is using MailKit 3.1.0. I have the following code snippet:

var from = "John Doe via [email protected] <[email protected]>";
var mailBoxAddress = MailboxAddress.Parse(from);

The second line of code leads to following Exception: MimeKit.ParseException: Invalid addr-spec token at offset 0

I did some testing and found out that the following variations of the string work:

var fromAlternative1 = "John Doe via noreplycompany.com <[email protected]>";  // missing @
var fromAlternative2 = "[email protected]<[email protected]>";  // no empty space

This leads me to the question wether it could exist a configuration that enables parsing the from string, there could be a bug or this behaviour is by design?

As a workaround im parsing the displayname and email-address by myself.

CodePudding user response：

You need to properly quote the name if it contains @ symbols or ..

Those are special characters that are required to be quoted by the email specifications.

In other words, the correct string would be:

"John Doe via [email protected]" <[email protected]>

Or, in C#:

var from = "\"John Doe via [email protected]\" <[email protected]>";