Am using Outlook with AOL as ISP. Until last 2 days all was OK. Now only able to receive mails and not end. When sending I get undeliverable message "554 transaction failed" I am able to send via AOL softtware.
Thanks for the link. Not sure that I understand much ot it as I don't know which type of error I get as lots of 554 messages. My guess is that AOl have blocked the IP. Guess I'll have to contact AOL. Aaargh!
This thread is now locked and can not be replied to.