Ce que donne une connexion "manuelle":

Code:
$ telnet smtp.laposte.net 25
Trying 81.255.54.9...
Connected to smtp.laposte.net.
Escape character is '^]'.
220 mx.laposte.net ESMTP Service (7.2.060.1) ready
MAIL FROM: XXXXXx@aol.com
501 Syntax error in parameters or arguments to MAIL command
EHLO DarkVador
250-mx.laposte.net
250-DSN
250-8BITMIME
250-PIPELINING
250-HELP
250-AUTH=LOGIN
250-AUTH LOGIN CRAM-MD5 DIGEST-MD5 PLAIN
250-DELIVERBY 300
250 SIZE 10485760
MAIL FROM: XXxXxx@aol.com
501 Syntax error in parameters or arguments to MAIL command
MAIL FROM zip
501 Syntax error in parameters or arguments to MAIL command
HELP
214-Valid SMTP commands:
214-  HELO, EHLO, NOOP, RSET, QUIT, STARTTLS
214-  MAIL, RCPT, DATA, VRFY, EXPN, HELP, ETRN
214-For more info, use HELP <valid SMTP command>
214 end of help

MAIL: XXXXXXX@aol.com
501 Syntax error in parameters or arguments to MAIL command
HELP MAIL
214-Syntax: MAIL FROM:<mailbox>
214-Syntax: MAIL FROM:<mailbox> SIZE=<decimal number>
214-Syntax: MAIL FROM:<mailbox> BODY=<7BIT|8BITMIME>
214-Syntax: MAIL FROM:<mailbox> RET=<FULL|HDRS>
214-Syntax: MAIL FROM:<mailbox> ENVID=<xtext>
214-Syntax: MAIL FROM:<mailbox> AUTH=<xtext>
214-Syntax: MAIL FROM:<mailbox> BY=<decimal number>[;"N"|"R"T
214-Purpose: Initiate a mail transaction and identify sender
214 end of help
MAIL FROM: (uncomptekiexiste)@laposte.net
501 Syntax error in parameters or arguments to MAIL command
"Marche plus" y faut croire..De toute façon un smtp public est chose rare...
En règle générale, utiliser un relai de son FAI est préférable.