Hello!
A couple of days ago I agreed to a wider range of Bitdefender's protection measures on my MacBookPro. Since then I have not been able to send mails using Thunderbird.
I took my Mac out of the list of devices protected by Bitdefender - et voila: My mail was sent instantly.
What do I have to fine-tune in Bitdefender so I can protect my laptop and still send mails?
Thanks in advance for your kind assistance!