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0 votes

Disable Outlook Web Access Junk filtering in Exchange 2013

Try this (Exchange PowerShell: $All = Get-Mailbox -RecipientTypeDetails UserMailbox -ResultSize Unlimited $All | foreach {Set-MailboxJunkEmailConfiguration $_.Name -Enabled $false}
  • 417
1 vote

Postfix OpenDKIM unable to sign outbound email

You have to create your own keys to be able to sign outgoing email, opendkim comes with a key generator (opendkim-genkey). I have no knowledge of google's admin portal, but if you control the DNS of ...
1 vote
Accepted

Is it possible to redirect (not forward) email in procmail?

This seems confused on multiple accounts. Forwarding does not touch the headers at all, and any reply from a RFC-conformant client should go to the sender indicated in the headers. In some more detail,...
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0 votes

Cannot send email from EC2 instance on port 587

It took me a while to figure out, but Amazon blocks the port 25 (SMTP) on EC2 instances and it's not clear whether or not it blocks all outbound emails as well : https://aws.amazon.com/premiumsupport/...
0 votes

Postfix rejects email routed from Google Workspace: NOQUEUE: reject: RCPT from unknown[209.85.128.69]: 451 4.3.0 Temporary lookup failure

The virtual table was missing. Created an empty /etc/postfix/virtual and ran command: postmap /etc/postfix/virtual
0 votes

Why do emails to a user in my database with an alias domain hit the server but get bounced (and the inbox is not created)?

The entry in /etc/postfix/virtual to translate all addresses is correct, but there should be a declaration for virtual mailbox domains in main.cf instead of virtual_alias_domains, for instance: ...
0 votes

Different DNS server answer me different things

After deep digging figure out next (see comments under original question). Some DNS resolvers returns status: SERVFAIL. jslawglobe.com has a signed delegation from the com zone, but does not have a ...
  • 711
2 votes

Different DNS server answer me different things

Usually when I encouter this sort of fault it's that the DNS of the destination has broken DNSSEC records. (here's a log line written by an instance of bind) Sep 19 20:17:07 ZZZZZ named[14371]: ...
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-4 votes

Different DNS server answer me different things

Google DNS might check that the TXT record has an entry called SPF (within TXT). Look for SPF records on Google search. There are plenty of article and good tutorial.
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1 vote
Accepted

Postfix rejecting outgoing emails because of "Relay access denied." | "generic_checks: name=reject_unauth_destination status=2"

In the scenario you tested, port 25 without auth, postfix rejects as it should. Otherwise you would be an open relay. postfix/smtpd @gmail.com: Relay access denied Connect to port 465 and ...
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0 votes

Mailman "from" spoofing

See @masegaloeh's answer for details. Here is a way to apply that setting in bulk: # updatelist_from_is_list.py import sys class UserDesc: pass def updatelist_from_is_list(mlist): if mlist is ...
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0 votes

Email goes to spam even with valid SPF, DKIM and DMARC records, dynamic rDNS on AWS instance

AWS is the only one who gave me an answer and I will post the solution here for future reference. If your domain isn’t managed by AWS in any capacity, then you will need to consult with the company ...
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0 votes

SPF FAIL but DKIM PASS with my own domain

Google is telling you that they used DKIM selector default to verify the digital signature on the email, and indeed it did validate. That can only happens if the server at ip.address.that.is.not.ours ...
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