Invalid address: (From):

Hello there!

I’ve got following issue: at some point mails that are supposed to be sent by WooCommerce stopped being sent.

Each time I place new order on the website, email sending process fails with error: “Invalid address: (From):”.

I googled it and answers I saw pointed me to changing of PHP version what didn’t help in the end. I contacted my hoster but no luck there either.

I tried to used headers with “woocommerce_email_headers” to add required header (could see it’s missing via WP Mail Log) and despite the fact I managed to add it, I still couldn’t and can’t get email on new order received.

Is there anyone who got stuck with the same or similar issue and could help resolve it?

Thank you!