3
votes
SPF failing even though source IP is in the SPF record
The SPF "fail" under "policy_evaluated" in the DMARC report indicates a mismatch between the DMARC domain (from the "From" header) and the SPF domain (from the "...
1
vote
Accepted
AWS-SES sending from one site, from is another site - will DMARC help or hurt
This issue shouldn't be related to DMARC. It's likely that there's a problem with the emails you are sending. Gmail is generally more tolerant of malformed emails than Yahoo Mail and Outlook.
For ...
1
vote
Accepted
Grafana - Have a View Panel button on email notification
It is not possible to have buttons if using a custom template for notifications as stated here :
https://github.com/grafana/alerting/issues/177#issuecomment-2027433668
1
vote
postfix bounce_queue_lifetime and maximal_queue_lifetime
For what I understood by reading the postconf (https://www.postfix.org/postconf.5.html):
--> maximal_queue_lifetime is the maximum lifetime for a "regular" mail. Hence, it is applied to ...
1
vote
Too many connect from unknown postfix
The root cause of the "problem" (which is not actually a problem) is that Postfix will log connect from unknown[IP] when it fails FCrDNS. This means Postfix tries to first look up the PTR ...
1
vote
How to find and edit the file for fail2ban to change the email address it's using to send banned IPs to
Fail2Ban typically stores its configuration files in the /etc/fail2ban directory. Within this directory, you'll find various configuration files.
The main configuration file is usually named jail.conf ...
Only top scored, non community-wiki answers of a minimum length are eligible
Related Tags
email × 6676postfix × 1583
email-server × 1273
smtp × 1002
linux × 672
spam × 550
domain-name-system × 520
exchange × 506
sendmail × 387
spf × 345
dovecot × 323
exim × 323
ubuntu × 296
mx-record × 273
php × 224
gmail × 223
email-bounces × 219
centos × 216
exchange-2010 × 209
dkim × 203
g-suite × 188
outlook × 182
debian × 156
imap × 155
exchange-2007 × 101