Questions tagged [smtp-auth]
The smtp-auth tag has no usage guidance.
134
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SMTP Port 25 Issue on Nginx Mail Proxy
I set up an Nginx mail proxy server and configured it to distribute to several mail servers as a front-end server. However, I need to open port 25 in the configuration; otherwise, I cannot receive ...
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326
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How to use NGINX as legacy SMTP proxy to new SMTP system?
We have some very old radio equipment in the field which uses SMTP to notify us of failures. Unfortunately this equipment does not support modern SMTP authentication methods (SSL, etc), and can only ...
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Exim - looking up account in both saslauthd and passwd file
I have a working Exim4 setup on Debian Bullseye, authentication uses plaintext/saslauthd.
I would like to add a few "service account" emails on the localhost, and I believ ethe easiest way ...
- 242
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postfix: remap user credentials for relayhost
I've been trying to figure out how to have postfix remap the username for an SMTP relay host similar to how fetchmail does for the inbound email.
In my fetchmailrc I have something that looks like ...
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In Postfix, Should SSL FQDN Matches with myhostname or mydomain field in /etc/postfix/main.cf?
Quoted from the documentation:
myhostname
The internet hostname of this mail system. The default is to use the fully-qualified domain name (FQDN) from gethostname(), or to use the non-FQDN result ...
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How to restrict based on combined usage of sender email and client ip address in postfix?
I have a MTA (postfix) with sasl implemented. I want that for a subset of users I can map their email address to a particular range of ips (separate for each email user). If a user tries to send email ...
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2k
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Client is sending SMTP emails but they are not recorded in the "Sent" folder in webclients
I have been using instantly.ai to send emails. I connected IONOS.ca and JustHost.com mailboxes to instantly and it works fine (warmup, receiving and sending [yes other emails receive the emails sent, ...
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418
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How to send email on behalf of a customer, such that they handle replies?
Scenario: I have a customer A, who authorizes me / my software to send email on their behalf to their customers P, Q, etc.
Additionally, P, Q, etc. should see the email as coming from a.example.com.
...
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448
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Postfix (SASL) and OpenDMARC-Reports
I am after suggestions on how to implement email sending of OpenDMARC-Reports. The problem I am having, is that (for obvious reasons), I have implemented SASL authentication on the smtpd server for ...
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Postfix Recipient address rejected: Access denied error after removing permit_mynetworks
I have a mail server which have to remove "permit_mynetworks" from Postfix configuration file(main.cf) in case of abuse. I only set it to allow SASL autheniented relay. But now, postfix ...
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Postfix: Disable SMTP Authentication for specific email addresses?
I've got a server running postfix, in my main.cf, I'm using
smtp_sasl_auth_enable = yes
smtp_sender_dependent_authentication = yes
I've got about 30 different email addresses (different domains, ...
- 101
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228
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.NET program sending of email not working on client server only
I've originally asked this in SO but it seems this is a more appropriate place.
Basically, I have a program that sends email which works on my local machine and on our company's server. However, it's ...
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4k
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SMTP authentication issues with Postfix Dovecot
I had bought a domain example.com and a VPS, and I used iRedMail to set up a mailserver.
Not wanting iRedMail to mess up with my Nginx, I decided to install Nginx and Roundcube by myself. However, it ...
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812
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nginx mail module always passing PLAIN method AUTH command to backend
I have implemented a nginx with mail module, and proxy to backend Hmail server. I realized no matter how I disable the auth-methods PLAIN. The nginx is just ignoring it.
How can I force to using ...
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689
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Postfix: how to use SASL authentication?
Hi I am trying to use a very simple sasl authentication. I have been testing the method here but still encounter error.
my server is a fresh install server.
And the command I run:
# saslpasswd2 -c -u ...
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