postfix

Mon
03
Dec
Dennis Faas's picture

How to Fix: Block Bitcoin Email Spam (Regex, Postfix)

Infopackets Reader Sam G. writes: " Dear Dennis, I came across your website while researching a postfix question. I am also a Linux systems administrator. As of late our organization has been bombarded with scam emails from 'hackers' purporting to ... have hacked our email accounts and PCs, and are demanding $800 in the form of bitcoin ('hush money') to keep things quiet. Is there any way to block all emails with bitcoin wallet requests? I would say 9.9 times out of 10, any bitcoin wallet money request through email is a scam. " My response: For the record this same bitcoin scam email is being ... (view more)

Fri
03
Nov
Dennis Faas's picture

How to Fix: Send Encrypted Email to Gmail (Postfix, TLS, SSL Certificates)

Infopackets Reader Martin R. writes: " The email newsletter I receive from you is showing in my gmail as "unencrypted," with a red pad lock . There is also a new warning banner that says: 'Be careful with this message. It contains content that's ... typically used to steal personal information.' The options are: learn more, report this suspicious message, ignore, or 'I trust this message.' This is not the only email I get that shows as unencrypted. What does this mean and how can it be fixed? " My response: Essentially it means that the mail you received (at gmail) was not sent using email ... (view more)

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