Hi!
I've developed a RFC821-compliant mail server. I want to make it clear
first that my server works well either with a mail client, as
Thunderbird, and with telnet session. I've configured Postfix to
communicate with my server modifying main.cf in this way:
relayhost = [myMailServer.localhost]
smtp_sasl_auth_enable = no
smtp_use_tls = no
disable_dns_lookups=yes
smtp_never_send_ehlo = yes
Then I try to send an email through mail command:
manu...@manugal-desktop:~$ mail -v -s "Subject"
manu...@mymailserver.localhost
Hello world!
.
EOT
Mail Delivery Status Report will be mailed to <manugal>.
manu...@manugal-desktop:~$
But mail doesn't arrive. Analyzing mail.log I've discovered that Postfix
doesn't receive 250 response (but receive a blank line). Nevertheless,
if I debug my server with gdb, I can see that it sends the string "250
OK\r\n". To do an attempt, then I've tried to send, as a response,
"\r\n250 OK\r\n" (so a 250 response code preceded by a CRLF). And now
response seems arrive at the other side. Look at mail.log:
Apr 10 22:05:36 manugal-desktop postfix/pickup[2846]: 70F9E21BDD:
uid=1000 from=<manugal>
Apr 10 22:05:36 manugal-desktop postfix/cleanup[2859]: 70F9E21BDD:
message-id=<20100410200536.70f9e21...@manugal-desktop.localdomain>
Apr 10 22:05:36 manugal-desktop postfix/qmgr[2847]: 70F9E21BDD:
from=<manu...@manugal-desktop.localdomain>, size=488, nrcpt=1 (queue
active)
Apr 10 22:05:40 manugal-desktop postfix/smtp[2850]: <
myMailServer.localhost[192.168.1.11]:25: 220 myMailServer.localhost SMTP
Service ready
Apr 10 22:05:40 manugal-desktop postfix/smtp[2850]: >
myMailServer.localhost[192.168.1.11]:25: HELO manugal-desktop.localdomain
Apr 10 22:05:46 manugal-desktop postfix/smtp[2850]: <
myMailServer.localhost[192.168.1.11]:25:
Apr 10 22:05:46 manugal-desktop postfix/smtp[2850]: <
myMailServer.localhost[192.168.1.11]:25: 250 OK
Apr 10 22:05:46 manugal-desktop postfix/smtp[2850]: server features:
0x1000 size 0
Apr 10 22:05:46 manugal-desktop postfix/smtp[2850]: >
myMailServer.localhost[192.168.1.11]:25: MAIL
FROM:<manu...@manugal-desktop.localdomain>
...
I don't know why replies must be sent in this way. Something is wrong.
I'm sorry for length.
