On 02/09/2012 11:13 AM, Ram wrote: > Lost connection after data may mean either the client closed the > connection , or the mail was timed out. > Are you able to send mails to this postfix server from other machines ? > If yes then it is unlikely to be a smtpd server issue
No, you ar not right my friend. "Lost connection after DATA" does not mean "client closed connection". It means, that client said "Now I will send you message, catch it", and he for some reason did not. Server said that "I will not wait any longer, closing connection and printing to logs about lost connection after data command". SMTP commands are small network packets. When client sends data, network packets must be as big as possible. More likely it's related to network and MTU issues on client side. -- Nerijus Kislauskas
