Tag: email

  • Environment specific mail auth and Seam’s MailSession

    If you are using Seam’s MailSession to send out going e-mail from your Seam application you can run into trouble if you have a mail server in any environment (dev, test, stage, prod) that allows outgoing mail based on the client’s IP address and does not use username and password based authentication. The standard configuration…

  • Please Stop Using Yahoo Mail

    Yahoo mail servers have been consistently delaying or rejecting e-mails for over a year. You can read about it here: http://www.ahfx.net/weblog.php?article=107 Or just Google for “4.16.50”. The short of it is that even with a low volume personal mail server, with the correct spf records, without running an open relay, without being blacklisted by ANY…

  • How to cleanout your postfix queues by sender

    This post is mostly to help me remember how to do this, if the situation arises again. I just had a lot of mail backup on my server. The 10MinuteMail inbox was over 300 MB (usually it kept below a megabyte), Postfix’s active queue was maxed out at 20,003 entries (why the 3, I don’t…

  • What’s up with SMTPS?

    Let’s start with SMTP. Simple Mail Transport Protocol. This is how e-mail gets sent. This is how e-mail makes it from you, to your recipient. When you check your e-mail, you use POP or IMAP to get the e-mail from the server. But when you’re sending e-mail, you use SMTP. SMTP is how your mail…

  • PGP E-mail Encryption conceptual issue

    I have a number of thoughts in mind, which will likely turn into posts, and they are all leading up to a bigger unified thought. This is one of them. PGP / GPG email encryption is a good thing. It’s a pretty secure system, and the public registries of public keys makes it easy to…

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