On 2020-09-01 00:28, @lbutlr wrote:
On 31 Aug 2020, at 10:08, Greg Sims wrote:
(1) continue to ignore the MaxConnection Messages/Deferrals
(2) reduce the number of processes per transport to 1
(3) reduce the number of outlook transports to 2
4) add a footer to mails going to outlook a
On 2020-08-22 22:35, Wietse Venema wrote:
Wietse Venema:
Greg Sims:
> sender_dependent_default_transport_maps = randmap:{r235,r236,r237,r238}
>
> selects transports at random for delivering email. Is it possible to
> schedule a set of transports using a round-robin discipline? This
man 5 tc
Hello,
Can I use Postfix without MX record? I installed Postfix and Dovecot via
"https://wiki.centos.org/HowTos/postfix"; tutorial and I want to know can I use
it without MX record?
Thank you.
Thanks for the help.
I have kept Postfix and many other services disabled at power-up since last
year and it works well for me that way. I did that last year after I got
DDOS and spammed tons of mail with virus attachments and my server was so
overwhelmed that I could not use it for days and even
Am 13.10.20 um 14:09 schrieb Jason Long:
> I want to know can I use it without MX record?
A records are used by default if no MX is available
That's nothing postfix specific - it's an RFC requirement for any MTA
Andreas
> Date: Tuesday, October 13, 2020 12:09:28 +
> From: Jason Long
>
> Hello,
> Can I use Postfix without MX record? I installed Postfix
> and Dovecot via "https://wiki.centos.org/HowTos/postfix"; tutorial
> and I want to know can I use it without MX record?
Yes. Some mail sites, incorrectly,
Jason Long:
> Hello,
> Can I use Postfix without MX record? I installed Postfix and?Dovecot
> via "https://wiki.centos.org/HowTos/postfix"; tutorial and I want
> to know can I use it without MX record?
The SMTP standard (RFC 2821) does not *require* MX records. Some
uninformed mail operators may r
On 13 Oct 2020, at 8:09, Jason Long wrote:
Hello,
Can I use Postfix without MX record? I installed Postfix and Dovecot
via "https://wiki.centos.org/HowTos/postfix"; tutorial and I want to
know can I use it without MX record?
That is entirely dependent on what you intend to use Postfix for.
Thank you for all of your messages.
With that tutorial, which record or port is needed?
On Tuesday, October 13, 2020, 04:31:34 PM GMT+3:30, Wietse Venema
wrote:
Jason Long:
> Hello,
> Can I use Postfix without MX record? I installed Postfix and?Dovecot
> via "https://wiki.centos.org
What are you trying to achieve?
There are alot of scenarios where Postfix may be used:
* "Send only" email server for your website (to give your website ability
to send emails). You never receive any emails from the outside.
* Forward only: it just accepts mails from your apps, and sends them via
I have an Internet domain name and a Linux server and I want to have an email
server for send and receive emails. For example, if my domain is "example.net"
then I want to have a "i...@example.net" address for send and receive emails
from the Internet.
On Tuesday, October 13, 2020, 06:09
On Tue, 13 Oct 2020, Jason Long wrote:
I have an Internet domain name and a Linux server and I want to have an
email server for send and receive emails. For example, if my domain is
"example.net" then I want to have a "i...@example.net" address for send
and receive emails from the Internet.
On 13 Oct 2020, at 09:45, Bernardo Reino wrote:
> On Tue, 13 Oct 2020, Jason Long wrote:
>
>> I have an Internet domain name and a Linux server and I want to have an
>> email server for send and receive emails. For example, if my domain is
>> "example.net" then I want to have a "i...@example.ne
I can't have MX record because the DNS server have another MX record for other
mail server.
I'm thankful if anyone tell me how can I solve my problem without MX record. Is
t possible with A record?
On Tuesday, October 13, 2020, 07:19:56 PM GMT+3:30, @lbutlr
wrote:
On 13 Oct 2020, at
> DNS server have another MX record for other mail server.
Then all mail to your domain will go to that mail server. No way to change
it. This is how SMTP works:
If one or more MX RRs are found for a given name, SMTP systems MUST
NOT utilize any A RRs
https://tools.ietf.org/html/rfc2821#section
> Date: Tuesday, October 13, 2020 15:52:41 +
> From: Jason Long
>
> I can't have MX record because the DNS server have another MX
> record for other mail server. I'm thankful if anyone tell me how
> can I solve my problem without MX record. Is t possible with A
> record?
Either you misstat
Good afternoon,
Can a Postfix instance have a destination based milter (for being able to
bypass DMARC check for some customers that ask for it) and finally for
everybody a filter action calling Amavis?.
I mean can a content filter be called from a restriction class (with filter
for instance)?. B
On Tue, Oct 13, 2020 at 04:42:31PM +, Richard wrote:
>
>
> > Date: Tuesday, October 13, 2020 15:52:41 +
> > From: Jason Long
> >
> > I can't have MX record because the DNS server have another MX
> > record for other mail server. I'm thankful if anyone tell me how
> > can I solve my probl
Notwithstanding, any "fully qualified domain name" (FQDN) can have email
sent to it; typically only the FQDN immediately below the zone cut, and
also the subject of SOA and NS records, has MX records.
But any other FQDN in the zone which has an A record should be
deliverable, if it's routable
Egoitz Aurrekoetxea:
> Good afternoon,
>
> Can a Postfix instance have a destination based milter (for being able to
> bypass DMARC check for some customers that ask for it) and finally for
> everybody a filter action calling Amavis?.
SMTP does not receive any destination until after the fourth s
On 13 Oct 2020, at 12:03, Fred Morris wrote:
> Notwithstanding, any "fully qualified domain name" (FQDN) can have email sent
> to it; typically only the FQDN immediately below the zone cut, and also the
> subject of SOA and NS records, has MX records.
Pretty sure it is prefect fine to have diff
Hello. Real example of someone with this setup, and all records for the
FQDNs in question, or it didn't happen.
On Tue, 13 Oct 2020, @lbutlr wrote:
On 13 Oct 2020, at 12:03, Fred Morris wrote:
Notwithstanding, any "fully qualified domain name" (FQDN) can have
email sent to it; typically only
I'm really thankful for all information and help.Excuse me, I have some
questions and I'm thankful if anyone answer to them by number:1- Each domain
can have a MX record?2- If a company need multi MX record then it must have
multi DNS server too?3- Other methods like forwarding need MX record to
>1- Each domain can have a MX record?
If you want to receive email for this domain then yes, you should have an
MX record for it. Without it "A" record will be used, but it is better to
have MX.
>2- If a company need multi MX record then it must have multi DNS server
too?
You can have multiple M
You want an MX record.
Why would you not want an MX record? What is the downside?
Where is your dns?
On 2020-10-13 11:04 a.m., Jason Long wrote:
I have an Internet domain name and a Linux server and I want to have an email server for send and
receive emails. For example, if my domain is "exa
Paul Lauzon wrote:
> I have kept Postfix and many other services disabled at power-up since last
> year and it works well for me that way. I did that last year after I got
> DDOS and spammed tons of mail with virus attachments and my server was so
> overwhelmed that I could not use it for days and
On 13 Oct 2020, at 15:02, Fred Morris wrote:
Hello. Real example of someone with this setup, and all records for
the FQDNs in question, or it didn't happen.
Waving at Fred...
billmail.scconsult.com. 10800 IN MX 0 clues.scconsult.com.
billmail.scconsult.com. 10800 IN MX
On Tue, 13 Oct 2020, Bill Cole wrote:
On 13 Oct 2020, at 15:02, Fred Morris wrote:
Hello. Real example of someone with this setup, and all records for the
FQDNs in question, or it didn't happen.
Waving at Fred...
billmail.scconsult.com. 10800 IN MX 0 clues.scconsult.com.
billma
Hi,
I know this is a complicated question but what/where do you see
possible bottlenecks in postfix?
Is it CPU? RAM? Disk IO?
I'm building an infra to send out ~3-5 million emails a day.
There are no known peak periods of the day but that's also sure that
the load will be uneven (no emails
> On Oct 13, 2020, at 7:33 AM, Tom Sommer wrote:
>
> The process limit would be an overall limit on the transport?
>
> Is there a way to limit the number of concurrent connections for each
> destination IP?
No. Postfix has no mechanism for that. The only entity with a
global view of the queu
On Tue, 13 Oct 2020, Fred Morris wrote:
Perfect, thanks! billmail.scconsult.com is not delegated from scconsult.com
(has no SOA or NS), and sccconsult.com is delegated from .com (of course),
with SOA and NS.
Bonus points: billmail has SPF.
Same concept, but a bit different (also has SPF, DA
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