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2 votes

Linux system mails alternative for sending and receiving besides SMTP

You can have a local mail system which sends all the locally generated mail to a configured smarthost, some remote mailer which is supposed to do all the hard work. You don't need a full-blown local ...
Nikita Kipriyanov's user avatar
1 vote
Accepted

Postfix sending duplicate emails under different userid's, how to fix?

Okay, it turns out that the problem had nothing to do with postfix, but was happening due to duplicate cronjobs (which I was unaware of), a root cronjob and a user cronjob (created by the same user ...
jamminjames's user avatar
0 votes

Email from any outside domain bounces back with 554 5.7.1 Relay access denied error

You have overridden virtual_alias_domains with an empty value, rendering your virtual_alias_maps useless. Removing that line should fix the problem given the MySQL configuration works. ...
Esa Jokinen's user avatar
  • 49.7k
1 vote
Accepted

Phishing email but with SPF, DKIM and DMARC in "PASS" status

This is impossible to analyze without the full headers. There could be many reasons for this. Some educated guesses can be made. As the message has passed the DKIM validation the source is likely ...
Esa Jokinen's user avatar
  • 49.7k
0 votes

Local Server connection to internal Mail-Server and SSL

To be able to send mail you first need to make sure if you connect to the internal mail server on the smtp ports. Then you have either two choices: You could setup a mail server in a docker container ...
Guido's user avatar
  • 61
2 votes

Postfix sending duplicate emails under different userid's, how to fix?

Received: by localhost.localdomain message-id=<Aej4eFk4CtMsohU6wbxrlXigdloI53zuZDvecHneZ9Y@localhost> Your server appears unaware of its own name - but that is required for sending mail on the ...
anx's user avatar
  • 9,708
0 votes

How to unblacklist an email at Microsoft/OutLook/hotmail

It seems this is currently the address for the delist interface: https://olcsupport.office.com/
DustWolf's user avatar
  • 126
0 votes

Simple mail server for web application

I have stumbled upon this topic while trying to setup my own mail relay for my small homepage that has a contact form. I spent days trying to get postfix running and wanted to share the word that ...
fmueller's user avatar
1 vote

Postfix sending duplicate emails under different userid's, how to fix?

Please check for local redirects in f.e. /etc/aliases Additionally there might be specific alias configuration in your main.cf which could result in this. Note that you might have not reloaded/...
Dennis Nolte's user avatar
  • 2,911
1 vote

Sending email with postfix on a specific IP address fails. Error 81126 with Gmail

Okay, I found the issue. Turns out that yes, a single ip address in smtp_bind_address and inet_interfaces field does indeed work. The problem was an incorrect iptables rule set by the wireguard ...
Oni's user avatar
  • 109
-2 votes

Abuse report attack on AWS SES

my 2 cents How other mail providers address it? would having user consent to email communication prior to signup , and presenting it as evidence to amazon help to offset fraud abuse report? having ...
Alex's user avatar
  • 97
-3 votes

Abuse report attack on AWS SES

I imagine it happens to many companies. Correct. I see this as well. Outside of highly motivated campaigns it is drowned out in a sea of actual, legitimate, back and forth communication with real ...
anx's user avatar
  • 9,708
2 votes

Out of Office was setup on an email which is now an alias; anyway to remove that out of office?

I tried testing in my Exchange server lab using steps below and the result indicate there's no need to worry about the OOF configured for the OOF set previously for the alias mailbox. Enable OOF for ...
Yuki Sun's user avatar
  • 216
0 votes

Applying Transport Rule only if the mail is text/plain and another if it is text/html

Indeed, the right Content-Type header isn't easy to catch. In fact, it's seen only when you use web mail (or if you know where to dig in Exchange logs). It's not the one you see in your Mail app. The ...
Josef Habr's user avatar

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