I am attempting to access my email via Thunderbird and I get the following in /var/log/mail.log
Oct 14 13:27:22 baal postfix/submission/smtpd[15559]: warning: hostname cuda1.p2pa.com does not resolve to address 69.24.39.162
Oct 14 13:27:22 baal postfix/submission/smtpd[15559]: connect from unknown[69.24.39.162]
Oct 14 13:27:22 baal postfix/submission/smtpd[15559]: improper command pipelining after EHLO from unknown[69.24.39.162]: QUIT\r\n
Oct 14 13:27:22 baal postfix/submission/smtpd[15559]: disconnect from unknown[69.24.39.162]
What is causing this?
Additionally I am also getting the following from Dovecot when it starts in /var/log/mail.err
Oct 14 12:05:35 baal dovecot: auth: Error: read(anvil-auth-penalty) failed: EOF
Oct 14 12:05:35 baal dovecot: auth: Error: net_connect_unix(anvil-auth-penalty) failed: Permission denied
This is the tutorial I followed: https://www.digitalocean.com/community/tutorials/how-to-configure-a-mail-server-using-postfix-dovecot-mysql-and-spamassasin
Become a contributor for community
Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.
DigitalOcean Documentation
Full documentation for every DigitalOcean product.
Resources for startups and AI-native businesses
The Wave has everything you need to know about building a business, from raising funding to marketing your product.
The developer cloud
Scale up as you grow — whether you're running one virtual machine or ten thousand.
Start building today
From GPU-powered inference and Kubernetes to managed databases and storage, get everything you need to build, scale, and deploy intelligent applications.
