220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000 250 OK 250 Accepted 354 Enter message, ending with "." on a line by itself 550 Administrative prohibition 250 OK 250 Accepted 354 Enter message, ending with "." on a line by itself 550 Administrative prohibition 250 OK 451 Could not complete sender verify callout 250 Reset OK 250 OK 250 Accepted 354 Enter message, ending with "." on a line by itself 550 Administrative prohibition 250 OK 250 Accepted 354 Enter message, ending with "." on a line by itself 550 Administrative prohibition 250 OK 451 Could not complete recipient verify callout 250 Reset OK 250 OK 550 failure message 250 Reset OK 250 OK 451 defer message 250 Reset OK 221 the.local.host.name closing connection 220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000 250 OK 250 Accepted 354 Enter message, ending with "." on a line by itself 550-Rejected after DATA: '>' missing at end of address: 550 failing address in "From:" header is: . 451-The mail server(s) for the domain may be temporarily unreachable, or 451-they may be permanently unreachable from this server. In the latter case, 451-you need to change the address or create an MX record for its domain 451-if it is supposed to be generally accessible from the Internet. 451 Talk to your mail administrator for details. 250 Reset OK 250 OK 250 Accepted 354 Enter message, ending with "." on a line by itself 550 Administrative prohibition 250 OK 250 Accepted 354 Enter message, ending with "." on a line by itself 550-Rejected after DATA: could not verify "From:" header address 550 unverifiable@y: Unrouteable address 250 OK 451-Could not complete recipient verify callout for . 451-The mail server(s) for the domain may be temporarily unreachable, or 451-they may be permanently unreachable from this server. In the latter case, 451 the address will never be accepted. 250 Reset OK 250 OK 550 failure message 250 Reset OK 250 Reset OK 250 OK 451 defer message 221 the.local.host.name closing connection