Install Mail-in-a-Box
Mail-In-A-Box is a complete mail server, that included webmail, smtp, imap, pop3. https://mailinabox.email Installation You need Ubuntu 14.04 to install Mail-In-A-Box. Before…
Dovecot
Dovecot is a IMAP/POP3 server. To install on Debian/Ubuntu, run apt install dovecot-core -y To see dovecot config, run root@ok:~# doveconf -n…
Configure ElasticEmail with Postfix
To configure ElasticEmail with postfix, first install sasl support On Debian/Ubuntu apt-get install libsasl2-modules On RHEL/CentOS yum install cyrus-sasl-plain Edit postfix config…
Setting up Mail Forwarding in Postfix
To setup mail forward in postfix, Edit postfix config file vi /etc/postfix/main.cf Add virtual_alias_domains = /etc/postfix/virtual_alias_domains virtual_alias_maps = hash:/etc/postfix/virtual_alias_maps Create file /etc/postfix/virtual_alias_domains…
mailgun
Configure Postfix to sent emails using MailGun Transnational Email Providers SASL authentication no mechanism available
Configure Postfix to sent emails using MailGun
First install requirements apt-get update && apt-get install postfix libsasl2-modules -y Run sed -i “s/default_transport = error/# default_transport = error/g” /etc/postfix/main.cf sed…
Check Mail Server Support SSL/TLS
To check if a mail server support SSL/TLS, run openssl s_client -connect MAIL_SERVER_IP:PORT -starttls smtp Example openssl s_client -connect smtp.elasticemail.com:25 -starttls smtp…
spf
http://www.openspf.org/SPF_Record_Syntax Here is some SPF examples DMARC record If you need to reject email, add p=quarantine If DMARC failed, remore mail server…
eximrm
Here is a bash script to delete mails in exim mail queue. Helpful when you have lot of spam mails in mail…
SASL authentication no mechanism available
When sending email from postfix mail sever that use mailgun for relaying mails, i get error Jan 4 03:16:06 serverok-vm postfix/qmgr[22652]: 795731A8D:…
Best Transactional Email Providers
Many cloud hosting providers, including Google Cloud, AWS, Microsoft Azure, and DigitalOcean, do not support sending emails directly from their servers. They…