Thanks for that. jessiebackports to the rescue. Upgraded SA to 3.4.1 and it did clear up the error.
...Kevin -- Kevin Miller Network/email Administrator, CBJ MIS Dept. 155 South Seward Street Juneau, Alaska 99801 Phone: (907) 586-0242, Fax: (907) 586-4588 Registered Linux User No: 307357 -----Original Message----- From: Axb [mailto:axb.li...@gmail.com] Sent: Friday, November 24, 2017 3:07 AM To: users@spamassassin.apache.org Subject: Re: MSBL Email Blocklist (EBL) SA usage query On 11/24/2017 12:39 PM, Andreas Schamanek wrote: > >> Upgrade SA and that should fix it. > > My servers run Debian 8 with SA 3.4.0 + perl 5.20. I still get > > Nov 24 06:47:41.209 [12603] warn: Use of uninitialized value in regexp > compilation at /etc/spamassassin/HashBL.pm line 52. > > Is 3.4.1 the minimum? Yep It requires "registryboundaries" which was introduced in 3.4.1