iPhone picture mails tagged as Spam

Written by - 0 comments

Published on - Listed in Internet Linux Mail


For a couple of days now I could follow a strange behavior in my mail servers. More and more spam mails were tagged when they were clearly normal ham mails. All these e-mails have something in common: They were sent by an iPhone and didn't contain a subject nor body text, only an attached picture. 

The problem is that such mails are now tagged by Razor (who knows why?):

RAZOR2_CF_RANGE_51_100=0.5, RAZOR2_CF_RANGE_E4_51_100=1.5,

Possible solutions show up. One of them is decreasing the Razor scoring, but as this is the first false-positive I personally see with Razor I don't want to do that. Instead a new spamassassin rule does the job:

header CK_IPHONE_PICTURE       ALL =~ /boundary\=Apple\-Mail.*/
describe CK_IPHONE_PICTURE     Mail sent by iPhone including picture
score CK_IPHONE_PICTURE        -5.0

Of all the affected mails I checked, they all had some header info in common. This rule checks the mails for the Apple-Mail header and scores it a bit lower.


Add a comment

Show form to leave a comment

Comments (newest first)

No comments yet.

RSS feed

Blog Tags:

  AWS   Android   Ansible   Apache   Apple   Atlassian   BSD   Backup   Bash   Bluecoat   CMS   Chef   Cloud   Coding   Consul   Containers   CouchDB   DB   DNS   Database   Databases   Docker   ELK   Elasticsearch   Filebeat   FreeBSD   Galera   Git   GlusterFS   Grafana   Graphics   HAProxy   HTML   Hacks   Hardware   Icinga   Icingaweb   Icingaweb2   Influx   Internet   Java   KVM   Kibana   Kodi   Kubernetes   LVM   LXC   Linux   Logstash   Mac   Macintosh   Mail   MariaDB   Minio   MongoDB   Monitoring   Multimedia   MySQL   NFS   Nagios   Network   Nginx   OSSEC   OTRS   Office   PGSQL   PHP   Perl   Personal   PostgreSQL   Postgres   PowerDNS   Proxmox   Proxy   Python   Rancher   Rant   Redis   Roundcube   SSL   Samba   Seafile   Security   Shell   SmartOS   Solaris   Surveillance   Systemd   TLS   Tomcat   Ubuntu   Unix   VMWare   VMware   Varnish   Virtualization   Windows   Wireless   Wordpress   Wyse   ZFS   Zoneminder   


Update cookies preferences