key lookup only works on rescan

When receiving emails, the first key lookup seems to look for @domain.tld. Emails get stuck in maildir/new until the rescan which then runs successfully. Hence mails take forever to be processed.

leap platform branch: master 6.0 Leap MX version: 0.5.0+0~~20140422134334.34+wheezy~~1.

2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserver,39,127.0.0.1] Query key: thoughtworks.com
2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserver,39,127.0.0.1] Starting factory 
2015-04-13 11:14:34+0200 [HTTP11ClientProtocol,client] Result not found
2015-04-13 11:14:34+0200 [HTTP11ClientProtocol,client] Stopping factory 
2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserver,39,127.0.0.1] Query key: wazokazi.is
2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserver,39,127.0.0.1] Starting factory 
2015-04-13 11:14:34+0200 [HTTP11ClientProtocol,client] Result not found
2015-04-13 11:14:34+0200 [HTTP11ClientProtocol,client] Stopping factory 
2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserverAccess,0,127.0.0.1] Query key: xx@wazokazi.is
2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserverAccess,0,127.0.0.1] Starting factory 
2015-04-13 11:14:34+0200 [HTTP11ClientProtocol,client] Stopping factory 
2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserver,40,127.0.0.1] Query key: xx@wazokazi.is
2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserver,40,127.0.0.1] Starting factory 
2015-04-13 11:14:34+0200 [HTTP11ClientProtocol,client] Stopping factory 
2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserver,38,127.0.0.1] Query key: xx@wazokazi.is
2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserver,38,127.0.0.1] Starting factory 
2015-04-13 11:14:34+0200 [HTTP11ClientProtocol,client] Stopping factory 
2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserver,38,127.0.0.1] Query key: 627ee521d872ba489a9c7ace99b0bfae@pixelated.wazokazi.is
2015-04-13 11:14:34+0200 [LEAPPostFixTCPMapserver,38,127.0.0.1] Starting factory 
2015-04-13 11:14:34+0200 [HTTP11ClientProtocol,client] Result not found
2015-04-13 11:14:34+0200 [HTTP11ClientProtocol,client] Stopping factory 
2015-04-13 11:14:35+0200 [LEAPPostFixTCPMapserver,39,127.0.0.1] Query key: pixelated.wazokazi.is
2015-04-13 11:14:35+0200 [LEAPPostFixTCPMapserver,39,127.0.0.1] Starting factory 
2015-04-13 11:14:35+0200 [HTTP11ClientProtocol,client] Result not found
2015-04-13 11:14:35+0200 [HTTP11ClientProtocol,client] Stopping factory 
2015-04-13 11:14:35+0200 [LEAPPostFixTCPMapserver,39,127.0.0.1] Query key: pixelated.wazokazi.is
2015-04-13 11:14:35+0200 [LEAPPostFixTCPMapserver,39,127.0.0.1] Starting factory 
2015-04-13 11:14:35+0200 [HTTP11ClientProtocol,client] Result not found
2015-04-13 11:14:35+0200 [HTTP11ClientProtocol,client] Stopping factory 
2015-04-13 11:31:42+0200 [LEAPPostFixTCPMapserver,41,127.0.0.1] Query key: root@wazokazi.is
2015-04-13 11:31:42+0200 [LEAPPostFixTCPMapserver,41,127.0.0.1] Starting factory 
2015-04-13 11:31:42+0200 [HTTP11ClientProtocol,client] Result not found
2015-04-13 11:31:42+0200 [HTTP11ClientProtocol,client] Stopping factory 
2015-04-13 11:31:42+0200 [LEAPPostFixTCPMapserver,42,127.0.0.1] Query key: wazokazi.is
2015-04-13 11:31:42+0200 [LEAPPostFixTCPMapserver,42,127.0.0.1] Starting factory 
2015-04-13 11:31:42+0200 [HTTP11ClientProtocol,client] Result not found
2015-04-13 11:31:42+0200 [HTTP11ClientProtocol,client] Stopping factory 
2015-04-13 11:31:42+0200 [LEAPPostFixTCPMapserver,42,127.0.0.1] Query key: wazokazi.is
2015-04-13 11:31:42+0200 [LEAPPostFixTCPMapserver,42,127.0.0.1] Starting factory 
2015-04-13 11:31:42+0200 [HTTP11ClientProtocol,client] Result not found
2015-04-13 11:31:42+0200 [HTTP11ClientProtocol,client] Stopping factory 
2015-04-13 11:33:59+0200 [-] Starting processing skipped mail...
2015-04-13 11:33:59+0200 [-] --------------------------------------------------
2015-04-13 11:33:59+0200 [-] Processing new mail at '/var/mail/vmail/Maildir/new/1428916475.Vfe00I2020f44M739155.pixelated'
2015-04-13 11:33:59+0200 [-] Mail owner: 627ee521d872ba489a9c7ace99b0bfae
2015-04-13 11:33:59+0200 [-] Starting factory 
2015-04-13 11:33:59+0200 [HTTP11ClientProtocol,client] Encrypting message to 627ee521d872ba489a9c7ace99b0bfae's pubkey
2015-04-13 11:34:00+0200 [HTTP11ClientProtocol,client] Exporting message for 627ee521d872ba489a9c7ace99b0bfae
2015-04-13 11:34:00+0200 [HTTP11ClientProtocol,client] Done exporting
2015-04-13 11:34:00+0200 [HTTP11ClientProtocol,client] Removing '/var/mail/vmail/Maildir/new/1428916475.Vfe00I2020f44M739155.pixelated'
2015-04-13 11:34:00+0200 [HTTP11ClientProtocol,client] Done removing
2015-04-13 11:34:00+0200 [HTTP11ClientProtocol,client] ++++++++++++++++++++++++++++++++++++++++++++++++++
2015-04-13 11:34:00+0200 [HTTP11ClientProtocol,client] Done processing skipped mail
2015-04-13 11:34:00+0200 [HTTP11ClientProtocol,client] Stopping factory

(from redmine: created on 2015-04-13, closed on 2015-04-22, relates #6687 (closed))

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