I have a legacy server that uses IMAP but does not support TLS. I am using stunnel and since implementation I am getting errors when an email has a larger attachment. My application process these attachments and when done (sometimes can take 5-10 minutes) it marks the message for deletion. When all messages are completed it purges the emails from the box. My app is throwing an error when it tries to delete the message (see below). I think it may be due to stunnel closing the connection to the server? Not quite sure.
javax.mail.FolderClosedException at com.sun.mail.imap.IMAPMessage.getProtocol(IMAPMessage.java:105) at com.sun.mail.imap.IMAPMessage.loadEnvelope(IMAPMessage.java:941) at com.sun.mail.imap.IMAPMessage.getSubject(IMAPMessage.java:238) at com.softlinx.docurouter.source.email.EmailSourceConnector.processMess ages(EmailSourceConnector.java:1213) at com.softlinx.docurouter.source.email.EmailSourceConnector.process(Ema ilSourceConnector.java:1455) at com.softlinx.docurouter.source.email.EmailSourceConnector.main(EmailS ourceConnector.java:1622) My configuration is pretty simple. I saw somewhere that I could put a timeoutidle on the connector but that does not seem to help. Any ideas are appreciated. Here is the config. # Stunnel configuration file for Office 365 SMTP and POP3 # Author: MessageOps, www.messageops.com<http://www.messageops.com> # GLOBAL OPTIONS client = yes output = /etc/stunnel/stunnel-log.txt debug=3 # taskbar=yes # SERVICE-LEVEL OPTIONS [POP3 Incoming] accept = 110 connect = outlook.office365.com:995 timeoutidle = 14400 [SMTP Outgoing] protocol = smtp accept = 25 connect = outlook.office365.com:587 [IMAP] accept = 143 connect = outlook.office365.com:993 timeoutidle = 14400 Here is a printout of the global options. Global options: debug = daemon.notice pid = /var/run/stunnel.pid RNDbytes = 64 RNDfile = /dev/urandom RNDoverwrite = yes Service-level options: ciphers = FIPS (with "fips = yes") ciphers = ALL:!SSLv2:!aNULL:!EXP:!LOW:-MEDIUM:RC4:+HIGH (with "fips = no") curve = prime256v1 sessionCacheSize = 1000 sessionCacheTimeout = 300 seconds sslVersion = TLSv1 (with "fips = yes") sslVersion = TLSv1 for client, all for server (with "fips = no") stack = 65536 bytes TIMEOUTbusy = 300 seconds TIMEOUTclose = 60 seconds TIMEOUTconnect = 10 seconds TIMEOUTidle = 43200 seconds verify = none -Ben
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