If they have an Exchange server on their premises, then he's correct. If they don't, then he's incorrect.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com ----- Original Message ----- From: "RickG" <[email protected]> To: "Mikrotik Users" <[email protected]> Sent: Thursday, December 18, 2014 10:29:13 PM Subject: Re: [Mikrotik Users] block port 25? Mike, my IP address provided by my upstream continues to get blacklisted and I don't like it however I do have one important business customer who has mail servers. On that note you hit something on the head! I had a discussion with their IT guy who told me "they must use port 25 (inbound & outbound) for their MS Exchange servers because SMTP is the only email protocol on the internet". Save me ;) On Thu, Dec 18, 2014 at 11:17 PM, Mike Hammett < [email protected] > wrote: If you don't have mail servers then who cares? That said, unless a customer has a mail server, they should not be sending anything out on port 25. Block 'em all. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com From: "RickG" < [email protected] > To: "Mikrotik Users" < [email protected] > Sent: Thursday, December 18, 2014 10:09:36 PM Subject: Re: [Mikrotik Users] block port 25? I dont have mail servers (thank God!). However, my IP addys continue to get blacklisted. I assume it's due to my subscriber's computers having trojans. Looking for suggestions on how to handle. On Thu, Dec 18, 2014 at 11:38 AM, Mike Hammett < [email protected] > wrote: <blockquote> Main IP? My mail servers get blacklisted once or twice a year due to compromised user credentials, but those are the only ones I care about. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com From: "RickG" < [email protected] > To: "Mikrotik Users" < [email protected] > Sent: Thursday, December 18, 2014 10:35:04 AM Subject: [Mikrotik Users] block port 25? <blockquote> Folks, I'm tired of dealing with my main IP being blacklisted for SPAM by certain users. Is it worth blocking port 25 anymore or is that old news? -- -RickG KyWiFi _______________________________________________ Mikrotik-users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/mikrotik-users _______________________________________________ Mikrotik-users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/mikrotik-users </blockquote> -- -RickG KyWiFi _______________________________________________ Mikrotik-users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/mikrotik-users _______________________________________________ Mikrotik-users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/mikrotik-users </blockquote> -- -RickG KyWiFi _______________________________________________ Mikrotik-users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/mikrotik-users
_______________________________________________ Mikrotik-users mailing list [email protected] http://lists.wispa.org/mailman/listinfo/mikrotik-users
