- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- Re: Authenticated SMTP
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
12-17-2013 03:05 AM - last edited on 12-17-2013 05:43 PM by Maiko-I
12-17-2013 03:05 AM - last edited on 12-17-2013 05:43 PM by Maiko-I
Authenticated SMTP
Hi Admins,
Till now sendmail configured by maintaining relay server name in sendmail.cf file. Now security team asking to configure authenticated sendmail.In which sending mail is authenticated via my AD id. instead of relay server name we have to give our AD server name. and also created auth_info file.
But my server is not LDAP configured.Then how authenticated SMTP will work,since my server not able to communicate with AD server. Please guide.
Regards
himacs
P.S. This thread has been moved from HP-UX > System Administration to HP-UX > messaging. - Hp Forum Moderator
- Tags:
- SMTP
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
12-17-2013 07:22 AM
12-17-2013 07:22 AM
Re: Authenticated SMTP
First, exactly what is the security team requesting?
Are they saying that the Exchange server (or whatever) you're using as your relay will be configured to require authentication before accepting mail? Then you should probably talk with the Exchange and/or AD admins and have them configure a "service account" for your Sendmail. Then you can add the username and password for that service account to your Sendmail configuration, so that Sendmail will authenticate as the service account when sending mail to Exchange.
If you are using Sendmail to handle locally-generated mail only, you should then make sure that other people in the network (or worse, in the entire Internet) cannot use your Sendmail to inject email to Exchange for further delivery. If your Sendmail only listens for SMTP in address 127.0.0.1, you're probably safe.
OR
If your Sendmail actually accepts incoming email from the network, the security team might be telling you to set up authentication or stop running Sendmail. In that case, you may have a lot more work.
First, find out:
- why your users are using your Sendmail instead of using the Exchange SMTP directly? Can they switch to using the Exchange SMTP interface and the appropriate authentication?
- can your users handle SMTP authentication (and probably SSL/TLS encryption too, since authentication in plaintext over the network makes no sense)?
- if your users cannot use authenticated SMTP (e.g. because they are hardware devices whose configuration supports basic SMTP only), are they located in fixed IP addresses? Would it be acceptable if your Sendmail accepted email from those fixed IP addresses only?
- does the security team require you to use AD usernames/passwords for authentication, or is it enough to implement a separate list of Sendmail users+passwords in some other way?