I am configuring sendmail(oof) for the umpteenth time on an internet server.
My MX record is pointing at mail.my.domain
Sendmail can and does accept mail for mail.my.domain
Sendmail is configured to masquerade as firstname.lastname@example.org
Sendmail refuses mail sent to email@example.com
The error message I receive when sending a message to firstname.lastname@example.org is:
x.w.y.z does not like recipient.
Remote host said: 550 5.7.1 <email@example.com>... Relaying denied. Proper authentication required.
Giving up on x.w.y.z.
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I have seen several blogs and forum entries elsewhere state that because NTFS volumes do not support linux ownership or permissions, they cannot be used for anonymous ftp upload through the vsftpd program.
IT can be done and here's how to get i…
Note: for this to work properly you need to use a Cross-Over network cable.
1. Connect both servers S1 and S2 on the second network slots respectively. Note that you can use the 1st slots but usually these would be occupied by the Service Provide…
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …
The Email Laundry PDF encryption service allows companies to send confidential encrypted emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…