I am getting a "420TCP write error" to this domain gmail.com. It`s the most reсent error. In some cases I get "451 4.4.2 Timeout - closing connection" error, and if the message is simple (dont containt any attachments, and size of MESSAGE nad TEXT.html less then 300) it`s sends good.
It begins when we`ve changed our internet provider. The firewall settings the same. The messages to other domains sends good, and I even can get mails from gmail acounts. I`m using gw 8.0 and sles10.
Any ideas?