So, I've been trying to send mail using std/smtp module through my maddy mail server. However the server responded with 501 5.5.2 Bad command when DATA was issued to send message content.
Full exchange log:
S:220 mx1.my.tld ESMTP Service Ready
C:HELO mx1.my.tld
S:250 2.0.0 Hello mx1.my.tld
C:AUTH LOGIN
S:334 VXNlcm5hbWU6
C:<redacted>
S:334 UGFzc3dvcmQ6
C:<redacted>
S:235 2.0.0 Authentication succeeded
C:MAIL FROM:<sender@my.tld>
S:250 2.0.0 Roger, accepting mail from <sender@my.tld>
C:RCPT TO:<recipient@my.tld>
S:250 2.0.0 I'll make sure <recipient@my.tld> gets this
C:DATA
S:501 5.5.2 Bad command
C:QUIT
I've recreated the same command sequence with sockets manually, and it worked. Then I noticed that smpt module adds a space after DATA which I confirmed was the cause of Bad command error
So, I've been trying to send mail using
std/smtpmodule through my maddy mail server. However the server responded with501 5.5.2 Bad commandwhen DATA was issued to send message content. Full exchange log:I've recreated the same command sequence with sockets manually, and it worked. Then I noticed that smpt module adds a space after DATA which I confirmed was the cause of Bad command error