Emails are not send when changing from O365 tenant

[david]

I think the issue is microsoft removing legacy authentication?

Not sending emails/invoices

Hello, I am in the same situation, no emails are sent despite that I use InvoiceNinja to remind my clients to pay for invoices 60, 30, 15, 7, 3 days before payment. I upgrade regularly, now using v5.3.78-L77. This started to happens since january I guess. I cannot tell you exactly when, because there is no log about sending emails. Yesterday I deleted ’laravel.log’. Today, I used the send email to remind a client for an invoice. I saw the notification that an email has been send, but the log …