Using telnet in vb.net is pretty straight forward. The class below will make a initial telnet connection to port 25 and return the response string. This could be adapted to perform various telnet sessions.
Have you ever wanted to query the Domain Name System (DNS) to discover what information it holds about your domain? Do you have some important changes to make to your DNS records and need a way to verify your changes? Here’s how to check your DNS records with a tool… Continue reading
This is a post from my old blog, from back in 2008 but used to get a few hit, so thought I would post it, One day soon ill re-read and rewrite it. but here are some Ettercap Basics for anyone still using it Thought id write a little something… Continue reading
If you setup your sender authentication records, they will absolutely help but still may not be enough. There are a few more things you can do to build your email sender reputation and improve your email campaign performance: Every few email campaigns check your mail server’s IP address against… Continue reading
What is a MX record? Well if you are asking this question, I’m sure your research wont end here. However all knowledge comes from knowing the right questions to ask, congratulations you are on your way. Ok, so according to wikipedia.org A mail exchanger record (MX record) is a type of resource record in the Domain Name… Continue reading
Results PermError SPF Permanent Error: I recently noticed I was having new email deliverability issues. It surprised me since things had been going well since switching to AuthSMTP for our outgoing mail.So I checked my SPF record. It looked like this: v=spf1 a mx include:aspmx.googlemail.com include:authsmtp.com include:mxlookups.com -all At first… Continue reading
I like to post some random stuff, in the hope that people stubble across it when they need it and its useful. There are plenty of third party options out there one that im aware of that has worked well, another is ASPMX this has some nice component properties and… Continue reading