[mailop] As I havent' seen this on the list as of yet.. serious problem with ClamAv affecting email servers..

2018-01-26 Thread Michael Peddemors
Just for the record, more information on the ClamAv mailing lists.. http://lists.clamav.net/pipermail/clamav-users/2018-January/005722.html -- "Catch the Magic of Linux..." Michael Peddemors, President/CEO LinuxMagic

Re: [mailop] Gmail's dkim=neutral

2018-01-26 Thread Leo Gaspard
On 01/26/2018 04:45 PM, Vladimir Dubrovin via mailop wrote:> Actually, SPF can not protect against (visible) spoofing, because it > doesn't check RFC5322.From, it performs sender's server identification > for SMTP's MAIL FROM/HELO domain only. Just adding that “it” also protects against visible

Re: [mailop] Gmail's dkim=neutral

2018-01-26 Thread Vladimir Dubrovin via mailop
26.01.2018 17:37, Benjamin BILLON пишет: > > Thanks for those details, > >   > > My understanding is that SPF was primarily conceived against spoofing, > and not for reputation purposes. > > It doesn't mean that spammers can't have a proper SPF. It doesn't mean > that legitimate senders can't have

Re: [mailop] Gmail's dkim=neutral

2018-01-26 Thread Benjamin BILLON
Thanks for those details, My understanding is that SPF was primarily conceived against spoofing, and not for reputation purposes. It doesn't mean that spammers can't have a proper SPF. It doesn't mean that legitimate senders can't have no SPF. On the other hand, there could be false positives

Re: [mailop] Gmail's dkim=neutral

2018-01-26 Thread Vladimir Dubrovin via mailop
26.01.2018 13:07, Benjamin BILLON пишет: > > Hi there! > >   > > I have a case where one sender's message has been abused, reused by > someone who just added a Subject: line (so now there's two), before > sending it. > > Apparently the final recipient was at Gmail (given the headers I had > access

[mailop] Gmail's dkim=neutral

2018-01-26 Thread Benjamin BILLON
Hi there! I have a case where one sender's message has been abused, reused by someone who just added a Subject: line (so now there's two), before sending it. Apparently the final recipient was at Gmail (given the headers I had access to), and logically: * SPF failed: the domain name of the

Re: [mailop] Anyone from Fasthosts.co.uk on here?

2018-01-26 Thread Paul Smith
On 25/01/2018 21:46, Carl Byington wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On Wed, 2018-01-24 at 09:30 -0500, Al Iverson wrote: Smells like a Fasthosts misconfiguration from here. If they are doing ip queries against the DBL for all connections, they will be refusing all