Exim strange log

[gerri]

Greetings to all,
a few days on my server I have the strange Exim log that I had ever seen.
Specifically:
SMTP call from [186.121.240.13]:18224 dropped: too many syntax or protocol errors (last command was "<$-��F��FLJ��ǔ���*Vy������E�ؼ>���>�<�>�k?j��GjD�G��?��Dȑ�DȞ�]Ȟ�]ȫRwȸ��������������������������Ƀ�B��[��[�
�l@��@:���:����P��B��>a��I�
�l���"�A A����{�
�ʭKs�Y?�Au�AvʶAG�2B�����I���I�A��
�")

Can anyone give me pointers on what they are and how to fix it?

Thanks to all

 

[cPanelMichael]

Hello

Please see this thread:

Sustained Exim Attack

Thank you.

 

[gerri]

Hello CpanelMichael

thanks for the reply, I read the thread but I can not find my server in the directory / etc / csf. As a result I can not set the rules and try to solve the problem.
My server is:
CENTOS 5.9 i686 standard
WHM 11.38.2 (build 7)
it is very annoying and I is occupying too much bandwidth and logs are very large.

Do you have any other suggestions or ideas?

Thank you very much

 

[dalem]

you have to actually install the firewall
ConfigServer Security & Firewall