Re: alterMIME

[Lucius Rizzo]

On Mon, Aug 22, 2016 at 04:14:31PM -0400, Joe Acquisto-j4 wrote:
> Any chance of assistance here with alterMIME?There is a 
> need to add disclaimers to outgoing mail.

I looked into altermime a few years ago. It works well with sendmail
(our preferred mta).

In one case, we choose to leave it to Barracuda Cloud Control [1] to 
do this. Barracuda cloud spam/anti-virus also allows you to set 
disclaimers. Its fairly easy to do to based on recipients or 
outgoing mail. This does however pose challenge for DKIM signed mail 
as barracuda modifies the message and your DKIM will fail. More and more
hosts these reject invalid emails.

I cannot praise Barracuda enough. Its absolutely necessary if you run a
busy MTA these days and have not given up control to Office365,Google :)

Again altermime with sendmail which also does DKIM signing works.
Another program that does this MimeDefang.

Hope that helps.

[1] - Demo - https://community.barracudanetworks.com/


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Re: alterMIME

[Lucius Rizzo]

Hello,

On Sat, Aug 27, 2016 at 10:40:31AM -0600, @lbutlr wrote:
> On 23 Aug 2016, at 06:29, Lucius Rizzo  wrote:
> > I cannot praise Barracuda enough. Its absolutely necessary if you run a
> > busy MTA these days and have not given up control to Office365,Google :)
> 
> I’ve had many issues with Barracuda over the years and would never recommend
> them. They joined my permanent shitlist when they offered to remove my mail 
> server 
> from their blacklist if I paid them $395 a year, I think it was.

Odd. And interesting. This sounds like extortion. And needs a bit
more details perhaps...

I have worked with their solutions since 2004 and have used both their 
appliance 
and cloud offerings at multiple sites with ^fairly^ large email volumes. Even 
as mail
communication has shifted to IMs and such, I still regularly recommend them in 
other 
consultant work.  I also use Dyn's Transactional email service along side 
Office 365 
Enterprise on a daily basis. 

In my "many" years experience with Barracuda, I have seen odd things --
misconfigured appliances, misconfigured cloud settings etc. Never what you
report, however. Even when dealing with their support teams, I have had a pretty
reasonable and decent experience.

Are you a referring to being including in their RBL's --
called BRBL and BRTS or are you actually using any of their product?

I rather prefer their RBLs over say zen.spamhaus.org. We suffered a 
dDOS of virus laden PDF's a few weeks ago. Roughly 250,000 emails in half hour 
that went on for a bit. This was successfully managed by Barracuda without 
any signs on our downstream  mail servers.

Would you happen to have the reasons of what happened and any communications
regarding this? More details would be useful as to what happened.

> That is not the only issue, but that is the one that caused them to be 
> permanently blackballed.

What are the other specific issues? 

Sincerely,

LR

Please Note - I do ^not^ work for Barracuda.


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Re: was - ? Re: alterMIME

[Lucius Rizzo]

On Sun, Aug 28, 2016 at 02:49:35PM -0400, Joe Acquisto-j4 wrote:
> Perhaps it's time to change the subject line?

I waited long enough to respond. No mail was blocked by barracuda as
well. From what I can see -- along with rather colourful, somewhat odd
choice of words to descibe barracuda service, I suspect any concerns are
probably from a possible spammer and not a legitimate user of Barracuda.

So, I reaffirm my stance on supporting a rather useful solution.
> 


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Re: Stopping acceptence from unowned networks address as from my domains

[Lucius Rizzo]

On Wed, Feb 06, 2019 at 08:44:40PM -0500, Ruben Safir wrote:
> I got this email, which I thought I set up postfix to block

Setup SPFi (SPF hardfail) , DKIM, DMARC properly