Learn the basics. Unfortunately, you do not seem to understand MTA/SMTP.
So read maybe https://github.com/poolpOrg/OpenSMTPD-book, also
https://poolp.org/posts/2019-09-14/setting-up-a-mail-server-with-opensmtpd-dovecot-and-rspamd/,
and get a better understanding of SMTP/MTA requirements.
A public IP is not enough, it has to be not residential or at least you
of course need port 25 to be open towards the world, which is not your
case, and you also need to be able to set the reverse for it, while
currently
humaaraartha.in. IN A 182.59.136.243
but
243.136.59.182.in-addr.arpa. IN PTR
static-mum-182.59.136.243.mtnl.net.in.
And I do not expect “Mahanagar Telephone Nigam Limited” to let you set
that reverse.
So back to our options : either get a VPS or dedicated server somewhere
that allow port 25 and setting reverse, or use an email service provider
that would allow you to relay emails.
Actually I’m not even sure that your available SMTP options
(Tutanota/GMail) would allow sending with an arbitrary MAIL FROM (i.e.
one that is not @tutanota.tld or @gmail.com), and as I don’t have an
account on either I cannot test that. So you would have to look into
https://man.openbsd.org/smtpd.conf#host and
https://man.openbsd.org/smtpd.conf#auth, and check whether any of your
email providers allow you to send email as @humaaraartha.in (and then
you might want to provide SPF records allowing them to do so).
Regards.
Le 06/09/2023 à 23:40, Sagar Acharya a écrit :
So what's the solution? I have a public ip. Can you suggest an edit?
Thanking you
Sagar Acharya
https://humaaraartha.in
7 Sept 2023, 00:43 by archa...@activis.me:
Hi,
Le 06/09/2023 à 22:40, Sagar Acharya a écrit :
I checked all network settings. They are perfect. Here is my conf below
exactly. There's some issue with it.
========== smtpd.conf ==========
table aliases file:/etc/smtpd/aliases
table whitelist file:/etc/smtpd/whitelist
pki humaaraartha.in cert "path_to_fullchain"
pki humaaraartha.in key "path_to_privkey"
listen on 0.0.0.0 tls pki humaaraartha.in
listen on 0.0.0.0 smtps pki humaaraartha.in
action "local" maildir alias <aliases>
action "relay" relay host "smtps://humaaraartha.in" mail-from "@humaaraartha.in"
This line cannot work. You are asking to relay outgoing emails to your own
server (host is the destination host — Jarod just linked the doc while I was
writing). They won’t go anywhere. You cannot workaround port 25 being blocked
by using another port, else port 25 would not be blocked anywhere. You have to
use an external relay that will accept submission from you on port 465 (smtps)
or 587 (submission) and then relay on port 25 to the world. That will likely
have to be one you have an account on (gmail or tutatnota).
Regards.
