Tagsuppression

Unsubscribe vs Suppress

When someone sends a complaint to your compliance desk there are a range of things you want to do, but one thing you always want to do is ensure that the recipient doesn’t receive any more unwanted email from your customer. Or, at least, not from your network. There are usually several different ways you can make sure that happens. There are big hammers a compliance desk can use in...

Global Suppression Lists

Global Suppression List. Pander File. Screamers List. Whatever you call it, it’s the list of email addresses you suppress from every mailing. If you’re an ESP, this is the list of people who you never, ever want to send email to – and I’m talking about ESP-wide global suppression lists here, not the suppression lists maintained per-customer. Global suppression lists are a...

Useful bits of Cryptography – Hashes

More than just PGP Cryptography is the science of securing communication from adversaries. In the email world it’s most obvious use is tools like PGP or S/MIME that are used to encrypt a message so that it can only be read by the intended recipient, or to sign a message so that the recipient can be sure of who it came from. There are quite a few other aspects of sending email where a little...

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