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My linux sendmail server is being forced out of commission by a flood of invalid smtp saslauthd logins.
I have searched and searched for a way to determine the IP so I can block it ... no luck.
The IP is not being recorded in the messages or secure logs.
Any advice would be greatly appreciated.

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merged by Chopper3 Jun 17 '11 at 8:51

this question was merged with Help! Linux server under SMTP SASLAUTHD attack! because it is an exact duplicate of that question.

migrated from stackoverflow.com Jun 17 '11 at 2:44

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