Tag Archives: mail server

SPF – Sender Policy Framework an Antispam solution

The Email Administrator has to implement SPF filtering on the mail servers and create SPF records for your mail server. SPF is the acronym for Sender Policy Framework and is an open standard specifying a technical method to prevent sender address forgery. SPF protects the envelope sender address giving the opportunity for a mail server to check if an email message is originating from a valid source and not from a forged source. The technology requires two sides configuration: (1) The domain …

Email address Spoofing – Someone is Using My address to Send Spam

… This is the most common place for spammers to get valid email addresses and use them to forge email messages If your company runs its own mail server configure it to ignore email sent to non-existent addresses in your domain. If your server sends a non-delivery report you reveal to a spammer valid addresses in your domain (the ones that don’t send NDRs). This attracts spam to those addresses. You waste bandwidth. The most common reason to send NDR’s for non-existent addresses is to …

How to Improve Internet speed at your Business

… regular phone. Video streaming are big bandwidth consumers. Users sometimes download files two or three times just because they don’t know where that file goes after the download. Many times they don’t even have the right to install or the file is already saved on an internal server. Sending files as attachments is another common mistake, especially if your mail server is hosted outside the company. Users will always prefer to send files via email than via a file server. A 15 Mb file will …