topic Re: port 25 in inside access list in Network Security https://community.cisco.com/t5/network-security/port-25-in-inside-access-list/m-p/1500386#M628330 <HTML><HEAD></HEAD><BODY><P>it should be enough if you allow only the traffic from mail server</P></BODY></HTML> Wed, 18 Aug 2010 01:12:59 GMT Jitendriya Athavale 2010-08-18T01:12:59Z port 25 in inside access list https://community.cisco.com/t5/network-security/port-25-in-inside-access-list/m-p/1500385#M628282 <P>Hi,</P><P>Just a quick question:</P><P>on the inside interface access list on an ASA 5510 (if i am running exchange 2007 on an inside network for instance 192.168.16.0 255.255.255.0) should i have an access list which allows tcp network 192.168.16.0 255.255.255.0 eq smtp or should i just allow host email_server_ip eq smtp?&nbsp; If i allow entire network do i invite a potential mail relay problem?</P><P>Thanks.</P> Mon, 11 Mar 2019 18:27:09 GMT https://community.cisco.com/t5/network-security/port-25-in-inside-access-list/m-p/1500385#M628282 mudubai04 2019-03-11T18:27:09Z Re: port 25 in inside access list https://community.cisco.com/t5/network-security/port-25-in-inside-access-list/m-p/1500386#M628330 <HTML><HEAD></HEAD><BODY><P>it should be enough if you allow only the traffic from mail server</P></BODY></HTML> Wed, 18 Aug 2010 01:12:59 GMT https://community.cisco.com/t5/network-security/port-25-in-inside-access-list/m-p/1500386#M628330 Jitendriya Athavale 2010-08-18T01:12:59Z