Hi everybody!

I just finished my first Horde (webmail edition) install on Ubuntu
12.04. After I had some problems with changing the language (I had
to add my wanted language and do a "|dpkg-reconfigure locales") and
with ActiveSync (I had to manually choose every folder for syncing
at the client), my only problem are lots of warnings in the
horde.log. After 15 minutes there are ~2000 new warnings, most of
them look like this:

2014-01-21T17:56:27+00:00 WARN: HORDE [imp] PHP ERROR: array_map():
Argument #2 should be an array [pid 3581 on line 706 of
"/usr/share/php/Horde/Imap/Client/Base.php"]

..only the pid changes. Every 8th of those warnings is followed by:

2014-01-21T18:25:53+00:00 WARN: HORDE [imp] PHP ERROR:
array_filter() expects parameter 1 to be array, null given [pid 6659
on line 719 of "/usr/share/php/Horde/Imap/Client/Base.php"]
2014-01-21T18:25:53+00:00 WARN: HORDE [imp] PHP ERROR: array_diff():
Argument #1 is not an array [pid 6659 on line 719 of
"/usr/share/php/Horde/Imap/Client/Base.php"]

What IMAP server is used? Do you use IMAP caching?
Maybe clearing the cache could help "horde-clear-cache->y"

Regards

Andreas

Hi Andreas,

thank you for this hint. I tried this command and checked the log file. In the first moment it seems like the warnings were gone. After some minutes the first warnings showed up again, but only a few. Now, after 3 hours, there are only 650 warnings in the log. So I think they could SMTP cache related.

I'm using dovecot-imapd 1:2.1.7-7 in combination with ISPConfig 3.0.5.3, now I'm trying to figure out if caching is enabled and where to change this in ISPConfig, but I can't find anything.

Best regards,

Karsten

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