Thread: General Email issue
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Old 23-10-2020, 07:48   #15
2old4this
cf.addict
 
Join Date: Jan 2004
Location: High Wycombe
Age: 54
Posts: 264
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Re: Email issue

Thank you for contacting Spamhaus CSS Removals,

A device (server, computer, mobile phone, etc), or an app on a device
that is using 92.40.172.*** is infected, insecure or compromised. It is
making SMTP connections with forged values.

The first detection was (UTC) 2020-08-01 23:30:00
The last detection was (UTC) 2020-10-22 10:20:00

To stop the abuse immediately, close outbound port 25 on the router or
firewall and restrict port 25 access to known email servers. Note: this
will only prevent the abusive connections from leaving your network.
If the problem is (for example) an infected mobile phone, when it moves
to another insecure network, it will resume its activity without restriction.

To find and eliminate the source of the problem, please see the our FAQs
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