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More blacklist/spam issues...?

edited Dec 3, 2019 3:00PM in General 3 comments

Since the mid January incident when NetSuite mail servers were blacklisted by spamhaus.org (which is supposedly resolved) we are still seeing a dramatically increased number of rejections (we send out our invoices via email through NS).  One of our customers invoices are continuing to reject so I contacted their hosting provider to see about getting removed from their blacklist and they informed that their spamtraps were still receiving spam generated from NS mail servers (see partial rejection header and note from provider below).

Any comments?

wcm



Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; host mx.mycustomer.com[123.456.789] said:
    554 5.7.1 Service unavailable; Client host [167.216.129.170] blocked using

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