Can't send emails from Thunderbird
I sent 5 batches of 150 BCC emails to my business customers in the last weeks, might be unrelated to my issue - however I cannot send emails now from Thunderbird, when I try this error message appears: "Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: avasout-peh-001 smtp ESMTP server not available (blacklisted by local policy)."
No idea what this means but I'd like to be able to send emails again. Any ideas or tips?
I sent 5 batches of 150 BCC emails to my business customers in the last weeks, might be unrelated to my issue - however I cannot send emails now from Thunderbird, when I try this error message appears:
"Sending of the message failed.
An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: avasout-peh-001 smtp ESMTP server not available (blacklisted by local policy)."
No idea what this means but I'd like to be able to send emails again. Any ideas or tips?