postfix smtp Must issue a STARTTLS command first
When sending an email to a server, mail bounced with the following error message. Action: failed Status: 5.7.0 Remote-MTA: dns; mail01.riedelbau.de Diagnostic-Code:…
postfix
How to stop SPAM with Postfix RBL
To stop spam using RBL in postfix, edit main.cf vi /etc/postfix/main.cf Add smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_invalid_hostname, reject_unauth_pipelining, reject_non_fqdn_sender, reject_unknown_sender_domain, reject_non_fqdn_recipient,…
Postfix enable Maildir
To enable postfix, run postconf -e “home_mailbox = Maildir/” systemctl restart postfix You can do it by editing /etc/postfix/main.cf vi /etc/postfix/main.cf Add…
Plesk Mail not working amavis error
When sending email from a Plesk server, i get error Aug 11 19:49:28 vmi274961 postfix/smtp[29276]: E413C3320265: to=, relay=none, delay=0.47, delays=0.47/0/0/0, dsn=4.4.1, status=deferred…
fatal: open /etc/postfix/main.cf: Permission denied
On a CentOS server, when sending mail from PHP scripts, mail failed to work. On checking postfix log file (/var/log/maillog), i see…
Postfix email forward
On an Ubuntu Server, i done following to setup email forwarding. Install postfix apt -y install postfix Edit /etc/postfix/main.cf, add following vi…
iredmail increase mail attachment size
Default mail attachment size in iredmail is 10 MB. To increase mail attachment size, login to server as user root, run following…
Postfix disable IPv6
To disable IPv6 on the postfix mail server, edit vi /etc/postfix/main.cf Find inet_protocols = all Replace with inet_protocols = ipv4 Restart postfix…
Configure postfix to relay mails using Gmail
Install postfix apt update apt install postfix libsasl2-modules Create file touch /etc/postfix/sasl_passwd chmod 600 /etc/postfix/sasl_passwd vi /etc/postfix/sasl_passwd Add [smtp.gmail.com]:587 user@gmail.com:password Save and…
Postfix Delete Mails from a user
To delete emails from a particular user from postfix mail queue, run postqueue -p | grep USER_HERE | cut -d’ ‘ -f1…
Configure Postfix to use Amazon SES
Install postfix with apt-get update && apt-get install postfix libsasl2-modules -y Update postfix config with sed -i “s/default_transport = error/# default_transport =…
postconf
postconf allow you to list/change postfix configuration. To list current config, run postconf -n To change a configuration, run postconf -e home_mailbox=Maildir/…