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Testing email delivery

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The solution Here is the solution. You can stop reading now: ./check_email_delivery –smtp-server smtp.example.org –mailto dan@example.org \ –mailfrom dan@example.org \ –body ‘test, please ignore’ –imapssl \ –imap-server imap.example.org –username deltest –password secret That will test both delivery and receipt. There. Be gone. You don’t need the rest of this article. Thanks. Background As pointed out, this isn’t testing for an email loop. This is testing delivery. I took the term from the phrase […]

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temporary failure. Command output: maildrop: signal 0x19

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This is not the first time this has happened. It last happened about a month ago. Tonight it happened for a different reason. This time it wasn’t the size of the mbox (I’m not using mbox on this server). This time it’s the size of the log. $ ls -lha ~/.mailfilter.log* -rw-r–r– 1 dan dan 52k Jan 11 00:18 /usr/home/dan/.mailfilter.log -rw——- 1 dan dan 48M Jan 10 21:03 /usr/home/dan/.mailfilter.log.1 Once I mv‘d the

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You don’t have permission to access /pipermail/bsdcan-announce/ on this server – mailman

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I ran into this problem today and spent about 2 hours trying to figure out what went wrong. I composed an email to the Mailman mailing list and never sent it, because I solved the problem. Here is that email: Subject: Cannot view archives via website Hello, I think this is solved, but I’m posting anyway. I *think* the issue is one of permission: Apache, running as user www, cannot access the private

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temporary failure. Command output: maildrop: signal 0x19

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Earlier this week, I started seeing this error on a FreeBSD 9.2 mail server running Postfix 2.10.1: CDDB71C56D53 37470 Mon Nov 11 16:22:45 MAILER-DAEMON (temporary failure. Command output: maildrop: signal 0x19) mailarchives@tallboy.unixathome.org I use maildrop, a procmail alternative. I first started using procmail in December 2000. It’s been a good 13 years, but it’s time. At the prompting of Warren Block, who has helped me (and many others) on numerous occasions in the

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Mail backups using newsyslog.conf for rotation

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I first mentioned this idea yesterday. This morning I started implementing it. UPDATE: this strategy is mentioned in Scenic BGP Route | TechSNAP 137 at about 0:47:30. I back up my mail. On a regular and frequent basis. However, I wanted something more. What about the email which comes in between backups? How can I capture them and restore them after restoring my backup? Yesterday I had an idea: Keep a copy of

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Using mbox for mail backup

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I’ve taken to the concept of sending a copy of each incoming email to a second server, for backup. This could be achieved by an alias. Store them in mbox format. Use newsyslog to rotate it over time. UPDATE: this strategy is mentioned in Scenic BGP Route | TechSNAP 137 at about 0:47:30. As part of disaster recovery, my Maildir would be restored from backup. The emails which arrived after the backup would

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Using nullmailer instead of a full blown mail server

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My mail server of choice is Postfix. I’ve been using it since 1992. It is what I install on all my servers. But that is going go change today. I just installed nullmailer on my DHCP server. When your machine just sends outgoing email, just as notices, you don’t need a full blown MTA. Something like nullmailer should suffice. The system I’m working on is a FreeBSD jail running FreeBSD 9.1-RELEASE-p4. I’m about

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Postfix client certificate verification

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I decided to set up some of my mail servers to require certification authentication on the submission port (587). In my case, I want to forward mail from my server at home to my public servers out there on the Internet. I don’t want just anyone to be able to submit mail here, so the easiest way for me do to this was with certification. I could have done it with IP addresses,

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Things to do

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I have a number of things I want to get done in the short term: remove the mail server on my gateway box at home and start using a mail server on an internal box Configure my external mail servers (out there on the Internet) to use TLS when talking to each other Configure those same servers to accept mail from that new internal mail server Stop using Postfix on servers which only

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spamlogd not running; spamd-setup won’t run

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Greylisting is an interesting approach to spam. I first started using it in the form of OpenBSD’s pf and spamd tools back in 2007. That said, I now let Google handle my incoming email. Today I was trying to get spamd-setup to run: spamd-setup: Can’t connect to spamd on port 8026: Connection refused I couldn’t figure that one out. But eventually I stumbled upon it… The problem was spamlogd. It wasn’t running. So

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