I need to urgently do the following in order to avoid having my QMail server attacked by spammers who steal my client's e-mail usernames and passwords and who use these usernames and passwords against our QMail SMTP server for relaying SPAM. Bear in mind I have no control of what passwords are changed to so no matter what I do our clients can and will always change their passwords to their own choice.
1. Monitor QMail queue lengths using SNMP.
I need to add SNMP management to QMail so that I can use my early warning system that is based on SNMP and a SMS alert system to give me early warning messages when the remote queue length is greater than a certain amount of messages. This way I can at least in real-time try and trace the offending IP, block it on our firewall, and contact the client.
I have done research on Google to try and find out how the hell to manage QMail using SNMP for Plesk but my research led nowhere. 4PSA has a great product that appears to work with SNMP and Plesk but because I can't integrate it with my own SMS system for the warnings I can't use it.
2. Limit the Maximum Amount of Recipients for a Single Message in QMail.
Either I'm missing something very obvious or whoever thought of QMail never thought of including by default a function to restrict the amount of recipients that a single message may be addressed to. I need this functionality for my Plesk QMail server. Again my research went nowhere, and it appears to SW-Soft has never included the flag(s) that control this. Can anybody tell me how to restrict the maximum number of recipients a single message may be addressed to in QMail? Without being able to do that a single connection might relay hundreds or thousands of messages in one shot. 5 Seconds for the SPAMmer and minutes or hours of frustration for me.
Please assist,
1. Monitor QMail queue lengths using SNMP.
I need to add SNMP management to QMail so that I can use my early warning system that is based on SNMP and a SMS alert system to give me early warning messages when the remote queue length is greater than a certain amount of messages. This way I can at least in real-time try and trace the offending IP, block it on our firewall, and contact the client.
I have done research on Google to try and find out how the hell to manage QMail using SNMP for Plesk but my research led nowhere. 4PSA has a great product that appears to work with SNMP and Plesk but because I can't integrate it with my own SMS system for the warnings I can't use it.
2. Limit the Maximum Amount of Recipients for a Single Message in QMail.
Either I'm missing something very obvious or whoever thought of QMail never thought of including by default a function to restrict the amount of recipients that a single message may be addressed to. I need this functionality for my Plesk QMail server. Again my research went nowhere, and it appears to SW-Soft has never included the flag(s) that control this. Can anybody tell me how to restrict the maximum number of recipients a single message may be addressed to in QMail? Without being able to do that a single connection might relay hundreds or thousands of messages in one shot. 5 Seconds for the SPAMmer and minutes or hours of frustration for me.
Please assist,