RARPSL
join:1999-12-08
Suffern, NY
| reply to natter
Re: They could hire me
said by natter  :
How do you use non-standard ports for email? Other servers won't look at 28 or something.
Most/Many SMTP Servers monitor not only Port25 (The MTA [Mail Transmission Agent] Port for Server-to-Server forwarding of Email) but Port587 (The MSA [Mail Submission Agent] Port that is SUPPOSED to be used to submit Email into the System instead of Port25). If an ISP REQUIRES the use of Port587 (along with SMTP AUTH as Required by the Port587 RFC) for all To-Be-Relayed mail submission to their Servers (no matter if it comes from their LAN or the Internet WAN) then they solve the issue of Trojan Spam Code pumping SPAM through their system. |
