For \craft\mail\Message setTo($to) doesn't work if $to is User[]

[bighoho123]

Description

When calling setTo($to), if $to is of User[], it will throw "Array to string conversion" error

Steps to reproduce

$message = new \craft\mail\Message();
$to = User::findAll();
$message->setTo($to);
$message->setSubject("Test");
$message->setHtmlBody("Hello World");

Additional info

• Craft version: Craft Pro 3.0.26.1
• PHP version: 7.2.5
• Database driver & version:
• Plugins & versions:

I think the reason being the Swiftmailer will expect $to to be ['[email protected]'=>'Person 1', '[email protected]'=>'Person 2'] instead of [['[email protected]'=>'Person 1'],[ '[email protected]'=>'Person 2']]

[brandonkelly]

Thanks for pointing that out, it’s been fixed for the next release.