diff --git a/man/man3p/Mail::SpamAssassin::Plugin::Esp.3p b/man/man3p/Mail::SpamAssassin::Plugin::Esp.3p
index 3241b4a..c2d4be2 100644
--- a/man/man3p/Mail::SpamAssassin::Plugin::Esp.3p
+++ b/man/man3p/Mail::SpamAssassin::Plugin::Esp.3p
@@ -133,7 +133,7 @@
 .\" ========================================================================
 .\"
 .IX Title "Esp 3"
-.TH Esp 3 "2020-08-21" "perl v5.30.3" "User Contributed Perl Documentation"
+.TH Esp 3 "2020-08-23" "perl v5.30.3" "User Contributed Perl Documentation"
 .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
 .\" way too many mistakes in technical documents.
 .if n .ad l
@@ -153,4 +153,5 @@ This plugin checks emails coming from \s-1ESP\s0 hacked accounts.
 .IP "sendgrid_feed [...]" 4
 .IX Item "sendgrid_feed [...]"
 A file with all hacked Sendgrid accounts.
+More info at https://www.invaluement.com/serviceproviderdnsbl/.
 Data file can be downloaded from https://www.invaluement.com/spdata/sendgrid\-id\-dnsbl.txt.