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Event ID: 2505 Source: MMReciever

Source
Level
Description
Relay attempt. From host 127.0.0.1 to recipient <email address>
Comments
 
According to EV100470 (ERRMSG: 2505 - Relay attempt (MMReceiver warnings)), this event indicates that the MailMarshal Receiver has blocked an unauthorized attempt to relay mail through your mail system, originating from the listed IP address.

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