Category Archives: Exim
Sender Verify Fail
If you are seeing errors like this: sender verify fail for [email protected]: The mail server could not deliver mail to [email protected]. The account or domain may not exist, they may be blacklisted, or missing the proper dns entries. When someone is trying to send an email from outside of your server to an address inside …
Gmail flagging all of your mail as spam
If all of the email you send to gmail (google) addresses are getting flagged as spam, but your server is clean, and not on any other blacklists, then something to check is if you have IPv6 enabled in Exim, but not in your SPF record. In a cPanel update, they added the following option to …
How to correct 554 5.7.1 : Relay access denied email errors, and prevent them in the future
Relay Accessed Denied is a common email error. It means that the server is not allowing an email to be sent to another mail server. The most common causes of this error are: The sender did not authenticate to the outgoing mail server The recipients server has determined the senders server to be a …
Sending mail from command line on Linux
If you need to sent a test email from a server via command line, you can use the following. This one uses PHP to send the email. Simply replace [email protected] with your own email address. php -r “mail(‘[email protected]’, ‘test’, ‘test’);” To send mail directly to the mail queue without the use of PHP, use …
Using telnet to test mail servers
Here’s a handy cheat sheet for testing mail accounts via telnet. The commands you need to type are in bold text POP3 telnet mail.yourdomain.com 110 Connects to the pop3 server user YourUsernameHere This submits your username to the server pass YourPasswordHere This submits your password to the server list This will list the emails …
Deciphering CSF blocked messages on a cPanel server
Often a client will get their IP address blocked on CSF (http://configserver.com/cp/csf.html). The blocked messages will tell you why it was blocked, however it’s usually quite vague stating it was blocked for failed passwords to the POP3 server. What it doesn’t tell you however is which account caused the block. Here is my cheat sheet …
Cpanel Exim How To Clear The Mail Queue
Here’s the proper way to clear the exim mail queue on a cpanel server. /etc/init.d/exim stop; sleep 10; killall -9 exim eximd sleep 5; #clean out the mail queue find /var/spool/exim -mindepth 2 -type f -exec rm -rf {} \; #clean out the mail db files find /var/spool/exim/db -type f -exec rm -rf {} \; …
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