[Tickets #10145] IMAP BADLOGIN - every 5 minutes

[bugs at horde.org]

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Ticket URL: http://bugs.horde.org/ticket/10145
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  Ticket             | 10145
  Created By         | simon at simonandkate.net
  Summary            | IMAP BADLOGIN - every 5 minutes
  Queue              | IMP
  Version            | 5.0.4
  Type               | Bug
  State              | Unconfirmed
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             |
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simon at simonandkate.net (2011-05-27 07:06) wrote:

Every 5 minutes, at the same time as Turba does a bind without a  
password as I have logged here - http://bugs.horde.org/ticket/10144 -  
Imp tries to do an IMAP login without a password.

The Horde log gets these (two every time):

2011-05-26T16:40:07+10:00 ERR: HORDE [imp] IMAP server denied  
authentication. [pid 4479 on line 343 of  
"/var/www/horde4/imp/lib/Imap.php"]
2011-05-26T16:40:14+10:00 ERR: HORDE [imp] IMAP server denied  
authentication. [pid 4479 on line 343 of  
"/var/www/horde4/imp/lib/Imap.php"]

My IMAP server has the following matching entries:

May 26 16:40:01 server04 imap[29973]: accepted connection
May 26 16:40:01 server04 master[30004]: about to exec  
/usr/lib/cyrus-imapd/imapd
May 26 16:40:01 server04 imap[30004]: executed
May 26 16:40:01 server04 imap[29973]: mystore: starting txn 2147486191
May 26 16:40:01 server04 imap[29973]: mystore: committing txn 2147486191
May 26 16:40:01 server04 imap[29973]: starttls: TLSv1 with cipher  
AES256-SHA (256/256 bits new) no authentication
May 26 16:40:01 server04 saslauthd[1516]: do_request      : NULL  
password received
May 26 16:40:01 server04 imap[29973]: badlogin:  
server06.simonandkate.lan [192.168.1.170] plaintext simon SASL(-13):  
authentication failure: checkpass failed
May 26 16:40:04 server04 saslauthd[1516]: do_request      : NULL  
password received
May 26 16:40:04 server04 imap[29973]: badlogin:  
server06.simonandkate.lan [192.168.1.170] PLAIN [SASL(-13):  
authentication failure: Password verification failed]
May 26 16:40:08 server04 saslauthd[1516]: do_request      : NULL  
password received
May 26 16:40:08 server04 imap[29973]: badlogin:  
server06.simonandkate.lan [192.168.1.170] plaintext simon SASL(-13):  
authentication failure: checkpass failed
May 26 16:40:11 server04 saslauthd[1516]: do_request      : NULL  
password received
May 26 16:40:11 server04 imap[29973]: badlogin:  
server06.simonandkate.lan [192.168.1.170] PLAIN [SASL(-13):  
authentication failure: Password verification failed]

No client access logged in httpd at that time. ActiveSync is off.

Line 343 of Imap.php is:

             $error = new IMP_Imap_Exception($e);