Hello guys, I am using the newest version of Plesk 11, running on Debian 6.0 What I would like to know is, how can I increase the max allowed connections for IMAP? Because as soon as I add two different IMAP accounts to thunderbird, I am receiving an error, that the maximum connections have been reached. The other thing where I need help with, is about sending mails to freenet users. Everytime I am sending a mail to a freenet user, I receive this error: The mail system <MailAddressOfAnUser@freenet.de>: host mx.freenet.de[220.127.116.11] said: 550 inconsistent or no DNS PTR record for xx.xx.xx.xx(see RFC 1912 2.1) (in reply to RCPT TO command) Action: failed Status: 5.0.0 Remote-MTA: dns; mx.freenet.de Diagnostic-Code: smtp; 550 inconsistent or no DNS PTR record for xx.xx.xx.xx (see RFC 1912 2.1) xx.xx.xx.xx stands for my server IP. It would be awesome if you could help me with those. Thank you very much in advance!