On 16-Oct-2009, at 13:31, Matt Friedman wrote:
For an internet facing postfix server, is TLS strictly required?
Of course not.
Do I need to obtain an SSL certificate for this?
You can, but you can also use a self-signed cert.
What would happen if I didn't use TLS? Would I be inviting spam
On Fri, Oct 16, 2009 at 01:32:11PM -0700, Mark Johnson wrote:
> Is there any way to config postfix reporting errors with an invalid
> email address?
Unfortunately, given the very brief description of the problem, no
answer is possible. You need to describe your problem in more detail,
giving exam
Mark Johnson:
> Is there any way to config postfix reporting errors with an invalid email
>-address?
Choose one of the following:
1) A client sends a non-existent address to the Postfix SMTP server.
2) A client sends a malformed address to the Postfix SMTP server.
3) A local program passes a n
Is there any way to config postfix reporting errors with an invalid email
address?
Thanks.
MJ
On Fri, Oct 16, 2009 at 03:50:30PM -0400, Matt Friedman wrote:
> Thanks Brian,
>
> Sorry if my questions are a bit inane. Feel free to point me at
> reading material if I'm being too much of a noob.
>
> Ok, so based on what you are saying postfix can be made sufficiently
> secure without TLS or
On Fri, Oct 16, 2009 at 03:38:26PM -0400, Brian Evans - Postfix List wrote:
> > What would happen if I didn't use TLS? Would I be inviting spammers
> > and hackers to take over my postfix installation? Are there
> > alternative security measures that are as secure or better?
> >
>
> TLS is to
Thanks Brian,
Sorry if my questions are a bit inane. Feel free to point me at
reading material if I'm being too much of a noob.
Ok, so based on what you are saying postfix can be made sufficiently
secure without TLS or and SSL certificate.
I'm thinking about when users login to fetch their email
Matt Friedman wrote:
> Hi,
>
> For an internet facing postfix server, is TLS strictly required? Do I
> need to obtain an SSL certificate for this?
>
No and No.
> What would happen if I didn't use TLS? Would I be inviting spammers
> and hackers to take over my postfix installation? Are there
>
Hi,
For an internet facing postfix server, is TLS strictly required? Do I
need to obtain an SSL certificate for this?
What would happen if I didn't use TLS? Would I be inviting spammers
and hackers to take over my postfix installation? Are there
alternative security measures that are as secure or
So which one is the guilty party in adding the Delivered-To header? I
didn't think that fetchmail touched the headers. I don't think that
fetchmail should have even been involved in this transaction, but it
looks like it did.
Received: from localhost [127.0.0.1]
by localhost with IMAP (fetc
John te Bokkel / Tempus:
> I am not sure why this is happening now, I haven't made any changes to
> configurations in the last while.
The Postfix local delivery agent will report a loop when it tries
to deliver mail to u...@example.com, and that message already has
a "Delivered-To: u...@example.co
On Fri, Oct 16, 2009 at 06:36:59PM +0100, Paul Hutchings wrote:
> After a little guidance on what those of you using Postfix as a gateway
> are using for doing s/mime email encryption?
S/MIME is in theory an MUA issue, MTAs just move the mail. This said, if
an end-to-end approach is not for you (
I am not sure why this is happening now, I haven't made any changes to
configurations in the last while.
It seems that fetchmail is catching mail that it shouldn't.
Here is an example of an email that got bounced. It was sent locally
in a backup script.
>From MAILER-DAEMON Fri Oct 16 12:31:13
-- Original Message --
From: wie...@porcupine.org (Wietse Venema)
Date: Fri, 16 Oct 2009 12:38:22 -0400 (EDT)
>Len Conrad:
>> postconf mail_version
>> mail_version = 2.3-20060126
>>
>> postconf | egrep smtpd_client_connection_rate_limit
>> smtpd_client_con
After a little guidance on what those of you using Postfix as a gateway are
using for doing s/mime email encryption?
I did some digging and it seems you can get certificates that authenticate a
company for s/mime rather than needing to authenticate each individual using a
cert on their MUA.
Of
On Fri, Oct 16, 2009 at 06:11:19PM +0200, Len Conrad wrote:
> postconf mail_version
> mail_version = 2.3-20060126
>
> postconf | egrep smtpd_client_connection_rate_limit
> smtpd_client_connection_rate_limit = 0
This is the default value. To disable anvil in an otherwise default
configuration:
Len Conrad:
> postconf mail_version
> mail_version = 2.3-20060126
>
> postconf | egrep smtpd_client_connection_rate_limit
> smtpd_client_connection_rate_limit = 0
>
> but after a few minutes of running, maillog is flooded with 1000s of
>
> Oct 16 12:11:45 postfix/smtpd[82433]: warning: connect t
postconf mail_version
mail_version = 2.3-20060126
postconf | egrep smtpd_client_connection_rate_limit
smtpd_client_connection_rate_limit = 0
but after a few minutes of running, maillog is flooded with 1000s of
Oct 16 12:11:45 postfix/smtpd[82433]: warning: connect to private/anvil:
Connection r
On Thu, Oct 15, 2009 at 09:05:17PM -0400, Wietse Venema wrote:
> Postscreen's greetpause is only the first step in a sequence of
> barriers that I expect will be needed. Adding greylisting support
> would be a next step. Adding greylist support to a kernel-based
> implementation looks unattractive
http://www.postfix.org/STANDARD_CONFIGURATION_README.html#firewall
http://www.postfix.org/postconf.5.html#parent_domain_matches_subdomains
Wietse
Cottalorda Sébastien wrote:
> Sorry, I've courier-imap, and I use roundcubemail as webmail.
> I also add to roundcube the vacation plugin that allow my users to program
> themselves theirs vacations.
> Everything is good, the link between the mysql database and the plugin, but
> now I want to conne
On 10/16/2009 Cottalorda Sébastien wrote:
I think I will use the "vacation.pl" program given with the
posfixadmin suite, maybe it follows what you said
As long as you're running the latest version (not latest stable, but
latest from svn)...
On Fri, 16 Oct 2009 00:33:19 +0200, mouss wrote:
> Cottalorda Sébastien a écrit :
>> Hi all,
>>
>> I need to add a vacation function into an existing postfix server which
>> is already protected by an Antispam/Antivirus software that uses
>> advanced filter.
>>
>> I've that configuration:
>>
>>
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