Display names containing a comma cause error

Yes you are right. It is a known and documented restriction on MailerHelperInterface::parseAddress(), so I would prefer to call it a feature request😃.

Since #3254085: Sending mails to multiple email addresses does not work via BC → , nearly a year ago, I've changed my views - back-compatibility mode is likely to stay around for many years, even "forever". So yes I am happy to fix this. We should use library code rather than re-inventing. I wonder about Mail_RFC822 in package pear/mail, see docs.

Thanks very much for the test. Setting to "Needs Review" so we can see that it fails😃.

In the meantime this patch solves the issue.

Also see swiftmailer_parse_mailboxes(), which is even more complex and yet still probably not fully correct or complete with the evolving standards.

Thanks the patch is useful for anyone who wants a solution in the meantime. I don't feel it's right to commit it, as it seems better to use library code.

See also core fix in 🐛 Uncaught RfcComplianceException when email From name contains a comma Fixed .

In my testing of splitting addresses, str_getcsv() is an improvement on explode() however it's not 100%:
- it works if the display name contains a comma
- if fails if the display name contains a less-than (because it removes the quotes within each address)

We had the same issue and the patch fixed the problem. As noted in #5, the str_getcsv() has an issue with "," in an address.

Let's just take the Core fix

        // Split values by comma, but ignore commas encapsulated in double
        // quotes.
        $value = str_getcsv($value, ',');

It goes in ImportHelper::parseAddress() in place of explode(',', $encoded).

Please Review changes in new MR.

Looks Good, hence moving into RTBC

Thanks. The code in Drupal Core has recently changed to support PHP 8.4. Please can we do the same here?

$value = str_getcsv($value, escape: '\\');

Hello @adamps

I have implemented the suggestion provided for extending support to PHP 8.4.

Please review and suggest any other changes is required

Moving the issue to Needs Review