thr3ads.net - dovecot - [Dovecot] DOVECOT 2.2.4 = 501 5.5.4 Unsupported options in LMTP [Jul 2013]

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Dmitry

2013-Jul-04 13:41 UTC

[Dovecot] DOVECOT 2.2.4 = 501 5.5.4 Unsupported options in LMTP

Hi,

Sorry for my english.
My problem:

***************************************************

dspam-3.9.0 (dspam-3.10.2 all the time segmentation fault)
dspam.conf
....................
# DeliveryHost        /var/run/dovecot/lmtp # same error as IP
DeliveryHost        127.0.0.33
DeliveryPort        24
DeliveryProto       LMTP
....................
ServerHost          192.168.1.34
ServerPort          24
ServerQueueSize     32
ServerPID           /var/run/dspam/dspam.pid

***************************************************

dovecot-2.2.4
10-master.conf
service lmtp {
  # Create inet listener only if you can't use the above UNIX socket
  inet_listener lmtp {
    # Avoid making LMTP visible for the entire internet
    address = 127.0.0.33
    port = 24
  }
}

quota is not included

***************************************************

telnet to dspam LMTP

# telnet 192.168.1.34 24
Trying 192.168.1.34...
Connected to 192.168.1.34.
Escape character is '^]'.
220 DSPAM LMTP 3.9.0 Ready
LHLO test.com
250-localhost.localdomain
250-PIPELINING
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 SIZE
MAIL FROM:<test at test.com>
250 2.1.0 OK
RCPT TO:<user at test.com>
250 2.1.5 OK
DATA
354 Enter mail, end with "." on a line by itself
1234567
qwertyu
asdfghj

.
530 5.3.0 <user at test.com> Fatal: 501 5.5.4 Unsupported options
QUIT
221 2.0.0 OK
Connection closed by foreign host.

***************************************************

at the same time tcpflow LMTP

# tcpflow -c -i any host 127.0.0.33
127.000.000.033.00024-127.000.000.001.41663: 220 mail Dovecot ready.
127.000.000.001.41663-127.000.000.033.00024: LHLO localhost
127.000.000.001.41663-127.000.000.033.00024: 
127.000.000.033.00024-127.000.000.001.41663: 250-mail
250-8BITMIME
250-ENHANCEDSTATUSCODES
250 PIPELINING
127.000.000.001.41663-127.000.000.033.00024: MAIL FROM:<test at test.com>
SIZE=25
127.000.000.001.41663-127.000.000.033.00024: 
127.000.000.033.00024-127.000.000.001.41663: 501 5.5.4 Unsupported options
127.000.000.001.41663-127.000.000.033.00024: QUIT
127.000.000.001.41663-127.000.000.033.00024: 
127.000.000.033.00024-127.000.000.001.41663: 221 2.0.0 OK
^Ctcpflow[5411]: terminating

***************************************************

after telnet to dovecot LMTP

# telnet 127.0.0.33 24
Trying 127.0.0.33...
Connected to 127.0.0.33.
Escape character is '^]'.
220 mail Dovecot ready.
LHLO test.com
250-mail
250-8BITMIME
250-ENHANCEDSTATUSCODES
250 PIPELINING
MAIL FROM:<test at test.com>
250 2.1.0 OK
RCPT TO:<user at test.com>
250 2.1.5 OK
DATA
354 OK
1234567
qwertyu
asdfghj

.
250 2.0.0 <user at test.com> WVKvFEln1VEuFQAAZU03Dg Saved
QUIT
221 2.0.0 OK

How can I persuade dovecot to deliver the mail?

And one more:

telnet to dovecot LMTP
# telnet 127.0.0.33 24
....................
MAIL FROM: test at test.com
501 5.5.4 Invalid parameters
MAIL FROM: <test at test.com>
501 5.5.4 Invalid parameters
MAIL FROM:<test at test.com>
250 2.1.0 OK

telnet to dspam LMTP
# telnet 192.168.1.34 24
....................
MAIL FROM: test at test.com
250 2.1.0 OK
....................

# telnet 192.168.1.34 24
....................
MAIL FROM: <test at test.com>
250 2.1.0 OK
....................


Thank you!

Regards,
Dmitry

Axel Luttgens

2013-Jul-06 08:36 UTC

head link

[Dovecot] DOVECOT 2.2.4 = 501 5.5.4 Unsupported options in LMTP

Le 4 juil. 2013 ? 15:41, Dmitry a ?crit :
> [...]
> 
> at the same time tcpflow LMTP
> 
> # tcpflow -c -i any host 127.0.0.33
> 127.000.000.033.00024-127.000.000.001.41663: 220 mail Dovecot ready.
> 127.000.000.001.41663-127.000.000.033.00024: LHLO localhost
> 127.000.000.001.41663-127.000.000.033.00024: 
> 127.000.000.033.00024-127.000.000.001.41663: 250-mail
> 250-8BITMIME
> 250-ENHANCEDSTATUSCODES
> 250 PIPELINING
> 127.000.000.001.41663-127.000.000.033.00024: MAIL FROM:<test at
test.com> SIZE=25
> 127.000.000.001.41663-127.000.000.033.00024: 
> 127.000.000.033.00024-127.000.000.001.41663: 501 5.5.4 Unsupported options
> 127.000.000.001.41663-127.000.000.033.00024: QUIT
> 127.000.000.001.41663-127.000.000.033.00024: 
> 127.000.000.033.00024-127.000.000.001.41663: 221 2.0.0 OK
> ^Ctcpflow[5411]: terminating
> 
> ***************************************************
Hello Dmitry,

So, it seems that when getting an LMTP connection from dspam, dovecot
doesn't advertise a SIZE extension and that dspam anyway makes use of that
extension.

Hmmm... from RFC5321:

	In the absence of specific extensions offered by the
	server and accepted by the client, clients MUST NOT send such
	parameters and servers SHOULD reject commands containing them as
	having invalid syntax.

I don't know anything about dspam (beside a quick look at their site) nor
how it integrates in your environment, but it looks like the behavior of
dspam's LMTP client is somewhat buggy.

Seems to be a question for some dspam mailing list...

On the other hand, the release notes for dspam Version 3.10.0 tend to imply that
the problem has been corrected.

HTH
Axel

Dmitry Dmitry

2013-Jul-10 11:15 UTC

head link

[Dovecot] DOVECOT 2.2.4 = 501 5.5.4 Unsupported options in LMTP

Hi,

Sorry for my english.
My problem:

***************************************************

dspam-3.9.0 (dspam-3.10.2 all the time segmentation fault)
dspam.conf
....................
# DeliveryHost        /var/run/dovecot/lmtp # same error as IP
DeliveryHost        127.0.0.33
DeliveryPort        24
DeliveryProto       LMTP
....................
ServerHost          192.168.1.34
ServerPort          24
ServerQueueSize     32
ServerPID           /var/run/dspam/dspam.pid

***************************************************

dovecot-2.2.4
10-master.conf
service lmtp {
  # Create inet listener only if you can't use the above UNIX socket
  inet_listener lmtp {
    # Avoid making LMTP visible for the entire internet
    address = 127.0.0.33
    port = 24
  }
}

quota is not included

***************************************************

telnet to dspam LMTP

# telnet 192.168.1.34 24
Trying 192.168.1.34...
Connected to 192.168.1.34.
Escape character is '^]'.
220 DSPAM LMTP 3.9.0 Ready
LHLO test.com
250-localhost.localdomain
250-PIPELINING
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 SIZE
MAIL FROM:<test at test.com>
250 2.1.0 OK
RCPT TO:<user at test.com>
250 2.1.5 OK
DATA
354 Enter mail, end with "." on a line by itself
1234567
qwertyu
asdfghj

.
530 5.3.0 <user at test.com> Fatal: 501 5.5.4 Unsupported options
QUIT
221 2.0.0 OK
Connection closed by foreign host.

***************************************************

at the same time tcpflow LMTP

# tcpflow -c -i any host 127.0.0.33
127.000.000.033.00024-127.000.000.001.41663: 220 mail Dovecot ready.
127.000.000.001.41663-127.000.000.033.00024: LHLO localhost
127.000.000.001.41663-127.000.000.033.00024:
127.000.000.033.00024-127.000.000.001.41663: 250-mail
250-8BITMIME
250-ENHANCEDSTATUSCODES
250 PIPELINING
127.000.000.001.41663-127.000.000.033.00024: MAIL FROM:<test at test.com>
SIZE=25
127.000.000.001.41663-127.000.000.033.00024:
127.000.000.033.00024-127.000.000.001.41663: 501 5.5.4 Unsupported options
127.000.000.001.41663-127.000.000.033.00024: QUIT
127.000.000.001.41663-127.000.000.033.00024:
127.000.000.033.00024-127.000.000.001.41663: 221 2.0.0 OK
^Ctcpflow[5411]: terminating

***************************************************

after telnet to dovecot LMTP

# telnet 127.0.0.33 24
Trying 127.0.0.33...
Connected to 127.0.0.33.
Escape character is '^]'.
220 mail Dovecot ready.
LHLO test.com
250-mail
250-8BITMIME
250-ENHANCEDSTATUSCODES
250 PIPELINING
MAIL FROM:<test at test.com>
250 2.1.0 OK
RCPT TO:<user at test.com>
250 2.1.5 OK
DATA
354 OK
1234567
qwertyu
asdfghj

.
250 2.0.0 <user at test.com> WVKvFEln1VEuFQAAZU03Dg Saved
QUIT
221 2.0.0 OK

How can I persuade dovecot to deliver the mail?

And one more:

telnet to dovecot LMTP
# telnet 127.0.0.33 24
....................
MAIL FROM: test at test.com
501 5.5.4 Invalid parameters
MAIL FROM: <test at test.com>
501 5.5.4 Invalid parameters
MAIL FROM:<test at test.com>
250 2.1.0 OK

telnet to dspam LMTP
# telnet 192.168.1.34 24
....................
MAIL FROM: test at test.com
250 2.1.0 OK
....................

# telnet 192.168.1.34 24
....................
MAIL FROM: <test at test.com>
250 2.1.0 OK
....................


Thank you!

Regards,
Dmitry

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