How to setup Fetchmail to forward popped messages to an SMTP server, and throw away any spam?
• Set “no envelope” so that the RCPT TO isn’t populated with other envelope recipiennts • Set “antispam 451” so that invalid sending domains get rejected & deleted • Set “no spambounce” and add 550 to the antispam flag so we don’t bounce spam but instead delete it from the inbox. Caution: if your SMTP server rejects a legitimate message for some reason, fetchmail will delete it!!! 4.6 Patch managment: we have many disparate systems and applications. How to prioritize the patching process? Develop a matrix which handles two of the most critical factors: the business risk associated with a security breach, and the allowable downtime periods to meet patching requirements for different vulnerability risk levels. Following is a sample matrix: Patch Priority Matrix Application Business Risk “Critical” Patches “Medium-Priority” Patches “Low-Priority” Patches Core databases High Immediate, in rotation After hours Weekend Desktop OS Medium After hours Weekend Weekend Desktop products Medium Aft
