I've got a fax machine converting inbound faxes to PDFs and sending them to my email. My ISP is now blocking port 25 on their entire network, no exceptions. Port 25 is fixed in the fax firmware and ...

Larry Seltzer of eWeek, whom I have great respect for and usually agree with, wrote this article on dealing with spam using the controversial tactic of blocking all outbound port 25 access.? The logic ...

Internet service provider YouFibre, which is one of the main retail outlets for Netomnia's growing national ...

I work for an ISP and occasionally deal with customers who swear up and down that they need *our* outgoing email server to make email that we do not host or provide work. Example: Customer has ...

Verizon is one of the many Internet Service Providers that require you to authenticate when sending mail. The purpose of SMTP authentication is to reduce email spamming and abusive mailing behaviors.