ZoneOut and Postfix
- Thread starter Ben25
- Start date
Thanks for the reply Sandy.
My postfix IS receiving E-mail that is sent here through port 2525 which is what I want, I tested it via a different third party who is specifically sending it to port 2525, but the 3rd party CANNOT send mail to me by using just *@mail.self-wrighting.net and he should be able to.
No log on my pfsense or postfix or any other logs, shows anything attempting to come to my mail server via port 2525, (save the exception mentioned above), though it is presently set in the MX Record field in the zoneedit Control panel. No errors, no rejections, no acceptance, no record whatsoever, no nothing.
Anyone SHOULD be able to send E-mail to my server just by using the domain name without having to specify the port.
Settings on my account over there;
Is that not correct?
My postfix IS receiving E-mail that is sent here through port 2525 which is what I want, I tested it via a different third party who is specifically sending it to port 2525, but the 3rd party CANNOT send mail to me by using just *@mail.self-wrighting.net and he should be able to.
No log on my pfsense or postfix or any other logs, shows anything attempting to come to my mail server via port 2525, (save the exception mentioned above), though it is presently set in the MX Record field in the zoneedit Control panel. No errors, no rejections, no acceptance, no record whatsoever, no nothing.
Anyone SHOULD be able to send E-mail to my server just by using the domain name without having to specify the port.
Settings on my account over there;
MX records | 
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CNAME/Alias records |
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Is that not correct?
Chris Cherry
Zoneedit Support
Your DNS configuration is only set for addresses based on your root domain - self-wrighting.net. That is what the "MAIL FOR ZONE" specifies.
When someone emails *@self-wrighting.net it is resolving mail.self-wrighting.net:2525
You're now referring to email addresses based on a sub-domain - i.e. *@mail.self-wrighting.net, which doesn't exist as an MX record.
You would need a second MX record configured as such:
MAIL FOR ZONE: mail
MAIL SERVER: mail.self-wrighting.net:2525
You would now be able to accept emails directed towards *@mail.self-wrighting.net
When someone emails *@self-wrighting.net it is resolving mail.self-wrighting.net:2525
You're now referring to email addresses based on a sub-domain - i.e. *@mail.self-wrighting.net, which doesn't exist as an MX record.
You would need a second MX record configured as such:
MAIL FOR ZONE: mail
MAIL SERVER: mail.self-wrighting.net:2525
You would now be able to accept emails directed towards *@mail.self-wrighting.net
Yes... or so one would think, Chris. However, there is something else going on here.
This setup that I have has been working for well over a decade, (probably closer to 2), with zoneedit with minor variations over time. Yet, despite various attempts no E-mail ever reaches my server using any variation of the following, including trying different ports. (My ISP blocked port 25 around the end of last year.) No logs show rejection, connection, errors or warnings that anything E-mail related on any port, has been pointed at my machine(s).
My setup is not complex and postfix here can be reached from the outside, via any port that I choose, (save port 25), the current one in use being port 26.
Any MX test site can reach my E-mail server on any port that I set it too, and receives the appropriate responses. However, still no E-mail reaches my server. The only thing outside of my control that appears to not be working is the routing of E-mail via your servers to mine.
Has something in your setup or process changed since last December that I am not aware of that can affect this?
MXToolbox shows this when doing an MXLookup on self-wrighting.net:
mx:self-wrighting.net
Yet, when preforming Test Mail Server for self-wrighting.net results show;
smtp:self-wrighting.net
Which is EXACTLY what one would expect if zoneedit was routing to port 25 and not to the one selected which is right now, set to port 26.
However, setting the Test Mail Server to self-wrighting.net:26 works exactly as expected; complete success.
smtp:self-wrighting.net:26
Are you SURE that your setup is routing to the port set on my Account setup page as shown above?
This setup that I have has been working for well over a decade, (probably closer to 2), with zoneedit with minor variations over time. Yet, despite various attempts no E-mail ever reaches my server using any variation of the following, including trying different ports. (My ISP blocked port 25 around the end of last year.) No logs show rejection, connection, errors or warnings that anything E-mail related on any port, has been pointed at my machine(s).
MX records |
| ||||||||
|
My setup is not complex and postfix here can be reached from the outside, via any port that I choose, (save port 25), the current one in use being port 26.
Any MX test site can reach my E-mail server on any port that I set it too, and receives the appropriate responses. However, still no E-mail reaches my server. The only thing outside of my control that appears to not be working is the routing of E-mail via your servers to mine.
Has something in your setup or process changed since last December that I am not aware of that can affect this?
MXToolbox shows this when doing an MXLookup on self-wrighting.net:
mx:self-wrighting.net
| Pref | Hostname | IP Address | TTL | |
|---|---|---|---|---|
| 5 | mx-caprica.zoneedit.com | 64.68.198.23 easyDNS Technologies, Inc. (AS16686) | 0 sec | Blacklist Check SMTP Test |
| Test | Result | ||||||
|---|---|---|---|---|---|---|---|
| DMARC Record Published | No DMARC Record found |
More Info |
| DMARC Policy Not Enabled | DMARC Quarantine/Reject policy not enabled |
More Info |
| DNS Record Published | DNS Record found |
Yet, when preforming Test Mail Server for self-wrighting.net results show;
smtp:self-wrighting.net
Unable to connect after 15 seconds.
| Test | Result | ||
|---|---|---|---|
|
| SMTP Connect | Failed To Connect |
More Info |
| Session Transcript: Connecting to 76.11.87.209 2/26/2023 6:24:30 AM Connection attempt #1 - Unable to connect after 15 seconds. [15.01 sec] LookupServer 15034ms |
Which is EXACTLY what one would expect if zoneedit was routing to port 25 and not to the one selected which is right now, set to port 26.
However, setting the Test Mail Server to self-wrighting.net:26 works exactly as expected; complete success.
smtp:self-wrighting.net:26
220 mail.self-wrighting.net ESMTP Postfix
| Test | Result | ||
|---|---|---|---|
|
| SMTP Banner Check | Reverse DNS does not match SMTP Banner |
More Info |
|
| SMTP Reverse DNS Mismatch | OK - 76.11.87.209 resolves to host-76-11-87-209.public.eastlink.ca | |
|
| SMTP Valid Hostname | OK - Reverse DNS is a valid Hostname | |
|
| SMTP TLS | OK - Supports TLS. | |
|
| SMTP Connection Time | 1.113 seconds - Good on Connection time | |
|
| SMTP Open Relay | OK - Not an open relay. | |
|
| SMTP Transaction Time | 1.722 seconds - Good on Transaction Time | |
| Session Transcript: Connecting to 76.11.87.209 220 mail.self-wrighting.net ESMTP Postfix (Ubuntu) [1035 ms] EHLO keeper-us-east-1d.mxtoolbox.com 250-mail.self-wrighting.net 250-PIPELINING 250-SIZE 52428800 250-ETRN 250-STARTTLS 250-AUTH PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-DSN 250-SMTPUTF8 250 CHUNKING [188 ms] MAIL FROM:<supertool@mxtoolboxsmtpdiag.com> 250 2.1.0 Ok [186 ms] RCPT TO:<test@mxtoolboxsmtpdiag.com> 454 4.7.1 <test@mxtoolboxsmtpdiag.com>: Relay access denied [179 ms] LookupServer 2298ms |
Are you SURE that your setup is routing to the port set on my Account setup page as shown above?
Chris Cherry
Zoneedit Support
Hello,
Using the root domain for your MX record when using our MX Port Forwarding is not recommended - it won't work that way correctly. I've updated your DNS configuration on how it would work best by using the sub-domain mail.self-wrighting.net as the MX.
My mention of not using the "mail for zone" as "mail.self-wrighting.net" might have confused that part. It was perfectly fine (and recommended) to have the Mail Server set as mail.self-wrighting.net, so I revered it back to that and created an A Record to match.
So long as your server is configured to handle mail as mail.self-wrighting.net on port 26 it should work.
Using the root domain for your MX record when using our MX Port Forwarding is not recommended - it won't work that way correctly. I've updated your DNS configuration on how it would work best by using the sub-domain mail.self-wrighting.net as the MX.
My mention of not using the "mail for zone" as "mail.self-wrighting.net" might have confused that part. It was perfectly fine (and recommended) to have the Mail Server set as mail.self-wrighting.net, so I revered it back to that and created an A Record to match.
So long as your server is configured to handle mail as mail.self-wrighting.net on port 26 it should work.