diff options
| author | Micah <micah@leap.se> | 2016-07-12 11:20:58 -0400 |
|---|---|---|
| committer | Micah <micah@leap.se> | 2016-07-19 10:44:11 -0400 |
| commit | bbdc193f05cb2f1624d6c7bbffd27f8060de35c8 (patch) | |
| tree | 5afe409027ccc69fd7d3c1895e39bb1800c9d2d0 /puppet/modules/site_postfix/files/checks/helo_access.pcre | |
| parent | 68544ba2ffdfa988c060b3b4c5bd075f7304a022 (diff) | |
Block ip-based helo at MTA (#8139).
Numeric helo is a very strong indicator of spam. When this is blocked, a
very significant amount of spam stops.
Change-Id: Ieb340190faf37638950d1aa60b52268659e0b7f6
Diffstat (limited to 'puppet/modules/site_postfix/files/checks/helo_access.pcre')
| -rw-r--r-- | puppet/modules/site_postfix/files/checks/helo_access.pcre | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/puppet/modules/site_postfix/files/checks/helo_access.pcre b/puppet/modules/site_postfix/files/checks/helo_access.pcre new file mode 100644 index 00000000..4ebd42e6 --- /dev/null +++ b/puppet/modules/site_postfix/files/checks/helo_access.pcre @@ -0,0 +1,2 @@ +!/[[:alpha:]]/ REJECT Numeric HELO is a sign of spam, please contact us if this is in error + |