Hi. Your RegEx is far too complicated :D <<@customer_company\.>> would have done the trick For your task you would need two filters From: @ X-OTRS-Ignore Yes and From: @customer_company\. X-OTRS-Ignore No Since the PostmasterFilters are executed sequentially, the second one overwrites the first one. Greets Daniel ________________________________ From: otrs-bounces@otrs.org [mailto:otrs-bounces@otrs.org] On Behalf Of Kent Lee Sent: Freitag, 16. Mai 2008 06:11 To: otrs@otrs.org Subject: [otrs] PostMaster Filter Hi you all, I got a problem here. About the PostMaster Filter. My PostMaster are working fine. User send a mail to support@mydomain.com will be automatically created a ticket. Now I want to do some filtering. I want only allowed certain email domain to be able to open a ticket in OTRS. For example: john@customer_company.com alice@customer_company.com I only wish to allowed all the email from the domain : "customer_company" to be open ticket in OTRS. How can I do that? I try some regexp in the match header. I used the "From:" header with the value: \b[A-Z0-9._%+-]+@|customer_company+\.[A-Z]{2,4}\b which will match all the email with the domain: customer_company. And the set header I choose X-OTRS-Ignore to the value of "No". Which this allowed the mail to open a ticket. However, it also allowed other mail domain (Eg: yahoo, hotmail) to open a ticket too! How to solved? Help! Appreciate your help! ________________________________ Get Free (PRODUCT) RED(tm) Emoticons, Winks and Display Pics. Check it out! http://joinred.spaces.live.com?ocid=TXT_HMTG_prodredemoticons_052008