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Re: [LUG] Email reputation
- To: "list@xxxxxxxxxxxxx" <list@xxxxxxxxxxxxx>
- Subject: Re: [LUG] Email reputation
- From: Matt Stevenson <mrmstevenson@xxxxxxxxx>
- Date: Tue, 22 Sep 2015 16:22:11 +0100
- Delivered-to: dclug@xxxxxxxxxxxxxxxxxxxxx
- Dkim-signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dcglug.org.uk; s=1428397562; h=Sender:Content-Type:List-Subscribe:List-Help:List-Post:List-Unsubscribe:List-Id:Reply-To:Subject:To:From:Message-ID:Date:References:In-Reply-To:MIME-Version; bh=Nj0K/qvM+33JrDjfTjl95Dgcgb8PSEh4DCcR+4VGRKU=; b=ML9tOFDzvuesP7yVLq02tu25z/qKh9JK9uYiTitIqBj4F/Gebqzdni36y9zNlrYM2xBzGw30nldWx6i+MhaLp/AMAaghaS+U/lFe4cmrjoOWP4I2sDQrNfQYbOaDR4JRcWy50g5uBB5hZQq3SZ++KfxQzT/t/i6mzzcTJJxIzcE=;
- Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=Qbk68NxZ3hLJ+JqB/NLmUpYAJ2qK1VRCl0E38u/qekU=; b=Y/hHzxmVOkToUQqK2AG6yVchS8ljA60IgLInBZ6Wf5+Q2H0sldXXgahjZk5/u0Dwl1 L00zqBZAt2113LFUhSItD4qtl9pPf6O69DSUlpuNgEgUpTxaTHryaKCEH0rmYcHBY1Ub KU9RPm7X5FaE+VBrIPhRPq8/yOlRVC4zLLf9wEkXH+1ZlN17CZC0PZ1FE7jhAuo6Unmk GN+YWVVVHogyx0Wvp/CmmqVWfkxjbPwWVe+IPNMAv5Ys4Dk5EPJYpp+gSvHVQRHaxisc OLBmLUnNBgfnlHlNrEXTOjz2nX2kdMm5wDsw2+t/CgeKjasRf9p4r0MkNJNF2TMfOI0b mWEQ==
Looking more closely at the Symantec reasons for blocking and cross checking with the results of http://multirbl.valli.org/lookup/ looks like 6 fails and DNS.
http://www.dnsstuff.com/tools check showing an open relay.
Is there a full proof way of checking if its definitely an open relay, if it is how do I shut it down?
Regards
Matt
On Tuesday, September 22, 2015, Matt Stevenson <mrmstevenson@xxxxxxxxx> wrote:
> Martyn that is brilliant I used the Symantec Link and it listed our IP as a bad reputation.
>
> I have applied to remove the Servers IP and in meantime maybe setup a with Send Grid (free account).
>
> Many Thanks
>
> Matt
>
> On Tuesday, September 22, 2015, Martijn Grooten <martijn@xxxxxxxxxxxxxxxxxx> wrote:
>> On Tue, Sep 22, 2015 at 11:50:56AM +0100, Matt Stevenson wrote:
>>> Thanks Martin. The MX toolbox gives me lots of green ticks when I check the
>>> blacklists so it must be something else.
>>>
>>> Have been Re-testing score is higher after DNS TTL. >>> I have been watching
>>> the score before and after the changes I made and allowed for the Time to Live
>>> on the domain.
>>
>> That's interesting. I'm not sure if I've ever seen that, but very short
>> TTLs (fast flux DNS) is a common spam/malware tactic, so it would make
>> sense that it could affect your score.
>>
>>> Do you have any other good sites for checking reputation ?
>>
>> I generally use http://multirbl.valli.org/
>>
>> And since you mentioned Symantec, I believe this is what you're looking
>> for http://ipremoval.sms.symantec.com/lookup/
>>
>> Martijn.
>>
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