25 Haziran 2008

Exchange 2003 Anti-Spam ve NDR Hakkinda

Soru:

Mail serverimiz spam için kullanılıyor.Bunu engellemek için ne yapabilirim.Kullancılar POP3 kullanmıyor.Tek çıkış mail serverda.Ama sürekli Queues de farklı kullanıcılara farklı domeinlerden giden mailler görünüyor.Acil Yardım Lütfen..

Cevap:

Oncelikle NDR raporlarinin kapatilmasi icin asagidaki adimi uygulamaniz yeterlidir:

Exchange System Manager konsolunda Global Settings tiklayinca sagda gelen Internet Message Format Properties’de Advanced sekmesinde Allow non-delivery reports kutusunu bosaltin.

Kuyrukta biriken NDR mesajlari ile ilgili olarak http://support.microsoft.com/kb/886208 makalesini incelemenizi ve makaledeki adimlari uygulayarak kuyruktaki NDR’leri temizleme ve filtreleme uygulayabilirsiniz.

Mail gateway gelen/giden mail trafigini karsilayan ve mailin spam, virus, trojan vb. guvenlik tehditlerine ve aciklarina karsi taramasini yaptiktan sonra icerdeki veritabaninin bulundugu sunucuya gecirerek mesaj trafigindeki hijyenligi saglayan urunlerdir. Bu konuda hem donanımsal kutu urunler yaninda hem de yazilimsal olarak bu destegi saglayan urunler mevcuttur. Burada gelen mailin reklam icerikli mail olma ihtimaline gore kullanmaniz gereken urun anti-spam urunleri olacaktir. Bu konuda birbirine yakin bir cok vendor’ın urunu mevcuttur. Fakat size tavsiyem Symantec Brightmail olacaktir. Gelen mesajin virus, trojan ya da spy taramasi icin de icerisinde antivirus, anti-spy korumasi barindiran bir urun kullanmaniz gerekir. Bu konuda Microsoft Forefront Security for Exchange, Symantec EndPoint Security, McAffee, TrendMicro, Kaspersky vb. alternatiflerini test ederek yapilacak analize gore ihtiyacinizi karsilayacak urunu secmeniz gerekecektir.

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