I do not believe that this problem is due to squirrelmail (SM) but I need to check out every possibility. On January 8 both SM and cyrus_imapd (CI) were updated on their respective hosts though the 'pkg upgrade' process of FreeBSD-11.2. Since that time we have noted a marked increase in the number of 'mailbox: longlock' messages in maillog and users are reporting encountering this message when searching message bodies or everything: ERROR: ERROR: Connection dropped by IMAP server. Query: SEARCH CHARSET ISO-8859-1 ALL BODY "test term" My reason for writing here is the search charset reportedly used by SM, ISO-8859-1. All our systems use UTF8 and my concern is that the character codeset reported in the error message might have something to do with the problem. As this codeset is the first block in UFT8 I cannot see how this could be but I have to ask. The OS on both hosts is FreeBSD-11.2p7. The squirrelmail version installed is squirrelmail-php56-20180404 which reports itself as SquirrelMail version 1.4.23 [SVN]. The PHP version on the squirrelmail host is php56-5.6.39, which was also updated at the same time as SM. It reports these options: Options : CGI : on CLI : on DEBUG : off DTRACE : off EMBED : on FPM : on IPV6 : on LINKTHR : on MAILHEAD : off PHPDBG : off ZTS : off The version of IMAP is cyrus-imapd30-3.0.8_2. It reports these options: Options : NNTP : off PGSQL : off READLINE_GNU : off READLINE_PERL : off REPLICATION : off SNMP : off SQLITE : on SQUAT : on XAPIAN : off -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail Do NOT open attachments nor follow links sent by e-Mail James B. Byrne mailto:ByrneJB@xxxxxxxxxxxxx Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3 ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users