Increase in Spam Email

I have a client who recently has seen a huge increase in spam delivered to their mailboxes. It's not the usual Russian bride / Viagra junk you see on a day to day basis. Instead the content is almost relevant. Emails from Bloomberg, articles regarding Gaza etc. What gives it away is that the senders address are not what you would expect to see if they were valid senders.

Now this client has recently switched ISP and they are adamant that the increase in spam has occurred since switching ISP. My question is that can switching ISP providers see an increase / decrease in spam activity?

Client is running SBS 2008 with Sophos endpoint protection. I have increased the Spam filter setting in Sophos  Puremesssge however it makes no difference as the emails are seen as valid and keep on arriving.

Any ideas?
Daniel BertoloneAsked:
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JohnBusiness Consultant (Owner)Commented:
There is a huge increase in spam. I get primary filtering by Mail.com (very good a spotting spam) and secondary filtering from my email ISP. I am not seeing in my Inbox but I do see much more in my spam trap.

I suggest a commercial antivirus is not up to spam today and suggest instead that you subscribe to a spam filtering service. They will tend to work better.
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Simon Butler (Sembee)ConsultantCommented:
I have seen a change in ISP increase the level of spam received before.

It usually because different groups target different networks. If you have moved to a bigger ISP then you will be targeted by a different group. If the spam is identical in behaviour (which it sounds like it is) then you are probably getting spam from a single source (as in the original creator, not the server sending the messages).

Spam products are not equal either. It would seem your current product is not up to the job, so you may have to start to look at others.

Simon.
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Daniel BertoloneAuthor Commented:
Thanks Guys
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JohnBusiness Consultant (Owner)Commented:
@Dantech-IT-Solutions  - Thank you and I was happy to help. Spam is really out of control right now.
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Daniel BertoloneAuthor Commented:
Thanks John, tell me about it. It seems in the last few weeks there has been a huge increase in Spam not detected by multiple vendors.
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JohnBusiness Consultant (Owner)Commented:
I use Mail.com as my primary mail receiver. Most stuff gets ditched without me seeing it (grey listing and like techniques). But I see a huge increase in espbroadcasters casino spam going into my spam quarantine (and then deleted).

I get almost none in my actual inbox (nice when I am travelling with only my iPhone).
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