Sendmail – retry instead of permanent failure on DNS errors
Hungrig asked: The last few days, our hosting provider has had occasional connectivity issues with one of their upstreams. Each time this happens, we end up with a heap of …
How to move domain to new host?
Artur Müller Romanov asked: I am very new to working with domains. Yesterday I set up a domain for my company. I used the service strato.de. Now I’ve read VERY …
Correctly setup email for WordPress
willowen100 asked: I have finally got WordPress setup and working on my VPS using WP-CLI. It wasn’t until I wanted to change my Administration Email Address found under Settings > …
Mail error 550 Maximum line length exceeded (RFC 5322 2.1.1)
Dennis asked: I have a reseller hosting account containing a couple of domains. One of our clients has recently been complaining about emails not being sent. They are receiving the …
Dovecot + Postfix can send but email will not show up in inbox
T. Zack Crawford asked: I am trying to set up an email server on my personal website server. I am mostly there, I can send email but sending emails to …
Gitlab – Postfix can't send mail to external domain
dvj asked: On an Ubuntu 18.04 Server (VM), I have a gitlab omnibus installation (12.10.6) configured with an LDAP login. Besides LDAP, I didn’t change the configuration defaults. At the …
No route to host and Connection timed out
adamanyn asked: I try to install Postfix to use it with PHP. I did the installation with this tutorial: how-to-get-php-mail-working-on-ubuntu-16-04 I sent an email but nothing happens. When I look …
Someone is sending email from my address. How can I prevent this from happening
Toolkit asked: I received a bunch of Mail delivery failed: returning message to sender messages and found out that someone is sending this email to random addresses: Today we are …
Struggling to configure sendmail right with email on same domain
CL40 asked: I have a situation that probably unusual. I run a handful of services I find useful at my domain example.com. example.com is pointed to my VPS server via …
rfc3207 smtp starttls restriction confusion
Rick asked: From https://tools.ietf.org/html/rfc3207: A publicly-referenced SMTP server MUST NOT require use of the STARTTLS extension in order to deliver mail locally. This rule (1.) prevents the STARTTLS extension from …