Security Basics mailing list archives
Re: Blocking Outlook External POP/SMTP
From: Jon Janego <jonjanego () gmail com>
Date: Tue, 16 Mar 2010 10:50:48 -0500
If your business runs its own DNS, the simplest way would be to block those domains at the DNS level. If you're using an externally-provided DNS server, many commercial products also let you granularly block sites. OpenDNS is one that comes to mind. On Thu, Mar 11, 2010 at 4:40 PM, Hart, Lee Anne <LeeAnne.Hart () montgomerycollege edu> wrote:
Hello, I'm looking for information on preventing/prohibiting users from utilizing Outlook (at work) to retrieve their personal email from Gmail, AOL, Yahoo, Comcast, Verizon, etc. Looking for the following: * Reasons why users should not be allowed to use Outlook on their work computers to retrieve their personal email. * Tools/techniques to block this type of traffic. It seems the most common ports are 110, 465, 587, 993, and 995. Are there others? Any reference are much appreciated. Thank you! Lee Anne
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Current thread:
- Blocking Outlook External POP/SMTP Hart, Lee Anne (Mar 15)
- Re: Blocking Outlook External POP/SMTP Ansgar Wiechers (Mar 15)
- Re: Blocking Outlook External POP/SMTP Gareth Fletcher (Mar 16)
- Re: Blocking Outlook External POP/SMTP Gichuki John Chuksjonia (Mar 16)
- Re: Blocking Outlook External POP/SMTP Stephen Mullins (Mar 16)
- Re: Blocking Outlook External POP/SMTP Kurt Buff (Mar 16)
- RE: Blocking Outlook External POP/SMTP Jay Vlavianos (Mar 16)
- Re: Blocking Outlook External POP/SMTP phillip bailey (Mar 16)
- Re: Blocking Outlook External POP/SMTP Jon Janego (Mar 16)
- Re: Blocking Outlook External POP/SMTP gig (Mar 16)
- Re: Blocking Outlook External POP/SMTP Phillip Bailey (Mar 16)
- Re: Blocking Outlook External POP/SMTP Pierre Jaury (Mar 16)
- Re: Blocking Outlook External POP/SMTP Nikhil Wagholikar (Mar 16)
- RE: Blocking Outlook External POP/SMTP Christian Campbell (Mar 22)
- Re: Blocking Outlook External POP/SMTP Francois Yang (Mar 22)
- <Possible follow-ups>
- Re: Blocking Outlook External POP/SMTP krymson (Mar 17)