"RBL" and "read error or connection close"

Fernando Villarreal <[email protected]>
Newsgroups gmane.mail.qmail.ldap
Message-ID <[email protected]>
Hi,

I've running the latest version of qmail-ldap for about 2 years  
without problems. I've a problem with a specific server receiving e- 
mails since 2 months ago.
This is a piece of my SMTP log, I allways get a "read error or  
connection close" after the "go ahead" message.

@400000004a0164ca1a8a3a44 qmail-smtpd 25576: connection from  
208.84.242.213 (us-fb02-01.mta.terra.com) to mail.uccuyo.edu.ar
@400000004a0164ca1a8a9034 qmail-smtpd 25576: enabled options: max msg  
size: 5000000 starttls sanitycheck blockrelayprobe rblcheck  
sendercheck rcptcheck smtp-auth qmailqueue /var/qmail/bin/qmail- 
scanner-queue.pl
@400000004a0164ca26a0cd34 qmail-smtpd 25576: remote ehlo: us- 
fb02-01.mta.terra.com
@400000004a0164ca32fe2554 qmail-smtpd 25576: mail from: [email protected]
@400000004a0164eb05c7a31c qmail-smtpd 25576: RBL check with  
'zen.spamhaus.org': temporary DNS error, ignored
@400000004a0164eb05e04f84 qmail-smtpd 25576: RBL check with  
'relays.ordb.orgs': no match found, continue.
@400000004a0164eb161e29ac qmail-smtpd 25576: RBL check with  
'bl.spamcop.net': no match found, continue.
@400000004a01650b24df1064 qmail-smtpd 25576: RBL check with  
'sbl.spamhaus.org': temporary DNS error, ignored
@400000004a01652907f7b9ec qmail-smtpd 25576: RBL check with  
'list.dsbl.org': temporary DNS error, ignored
@400000004a01652907ff89ec qmail-smtpd 25576: RBL check with  
'spamguard.leadmon.net': no match found, continue.
@400000004a01652907ff95a4 qmail-smtpd 25576: RBL checking completed
@400000004a01652907ff9d74 qmail-smtpd 25576: rcpt to: [email protected]
@400000004a01652907ffa544 qmail-smtpd 25576: recipient verify,  
recipient not in goodmailaddr
@400000004a01652907ffad14 qmail-smtpd 25576: recipient verify,  
recipient is local
@400000004a0165290876c55c qmail-smtpd 25576: recipient verify OK
@400000004a0165290e09ae6c qmail-smtpd 25576: go ahead
@400000004a0165290e0b6004 qmail-smtpd 25576: read error or connection  
closed

After a lot of research and a similar problem with another server, I  
added the IP addresses to my qmail-smtpd.rules and deactivated the RBL  
verification for them and now is working fine.

@400000004a01ce581f0523a4 qmail-smtpd 4479: connection from  
208.84.242.213 (us-fb02-01.mta.terra.com) to mail.uccuyo.edu.ar
@400000004a01ce581f058934 qmail-smtpd 4479: enabled options: max msg  
size: 5000000 starttls sanitycheck blockrelayprobe sendercheck  
rcptcheck smtp-auth qmailqueue /var/qmail/bin/qmail-scanner-queue.pl
@400000004a01ce582fd6dd44 qmail-smtpd 4479: remote ehlo: us- 
fb02-01.mta.terra.com
@400000004a01ce5905103de4 qmail-smtpd 4479: mail from: [email protected]
@400000004a01ce590510af2c qmail-smtpd 4479: rcpt to: [email protected]
@400000004a01ce590510b6fc qmail-smtpd 4479: recipient verify,  
recipient not in goodmailaddr
@400000004a01ce590510becc qmail-smtpd 4479: recipient verify,  
recipient is local
@400000004a01ce590555788c qmail-smtpd 4479: recipient verify OK
@400000004a01ce59055dbdbc qmail-smtpd 4479: go ahead
@400000004a01ce5e33fe0d0c qmail-smtpd 4479: message queued: 1241632340  
qp 4481 size 5267 bytes
@400000004a01ce5e33fe1cac qmail-smtpd 4479: quit, closing connection

As you can see the server is the same, but, after I removed the RBL  
verification the messages are accepted now.

Does anybody know what is going on here?

Please, I need some help, its impossible to me maintaining the IP list  
of qmail-smtpd.rules

It should be an explanation for this.

Thanks.

Fernando.

-- 
Ing. Fernando Villarreal
Infraestructura
Dirección Operaciones

SÍLICE S.A.
Tranquilidad Tecnológica

Av. Emilio Civit 43 Cdad.
Mendoza - Argentina (M5502GVA)
Telefax: +54 261 4294141 (PBX)  Ext. 37
http://www.silice.biz
Telefonía IP: voip.silice.biz

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