Khad's Blog

Email filtering by ISP today is very bad, returning 250 2.0.0 OK but actually no email was sent, your email is lost. Also someone can read your email when sent How do you know if your email has been filtered or not? try telnet to the external smtp server port 25, the normal response should be like this: And when filtered, response like this: See, there are no STARTTLS in the filtered network, so the e-mail client is forced to send in plain text, unencrypted. Not only email clients, but also applications that send notifications via email Tips: Use other SMTP port like 587, 465 Always use TLS in your mail client SMTP setting: STARTTLS or SSL/TLS

So I bought reusable stainless steel coffee filter, the result is very good 👍 It is laser cutted fine filter, shaped like cone. But after a few months using it, water wont flow through filter completely 😭 I found many solutions to fix this on the web, pour with hot water, cleaning with soap, run with hot vinegar, problem still exists Then one suggests to run it with bleach (i use bayclin) and finally the filter back to normal again 😍