In part 1 I talked about internationalised domain names, and how they were mapped onto ASCII strings. For sending email there are four bits of the message where internationalisation might need to be considered. Sender or recipient email address Header content, such as the Subject line or the “friendly” name in the To or From The visible body of the message The web URLs the body of the...
Last week @justinpremick tweeted the question “Is it ever OK to break best practices.” My reaction, and reply, was of course it is OK to break best practices, if you know what you’re doing and why. Best practices are all about things that are safe. If you do these things, in all likelihood you will not encounter any major problems. The things we tell people are best practices...
One of my major pet peeves is supposedly legitimate companies hiding behind privacy protection in their whois records. There is absolutely no reason for a legitimate company to do this. There are lots of reasons a non-legitimate company might want to hide behind privacy services, but I have never heard a good reason for legitimate companies to hide. Look, a company sending any commercial email is...
Number three of seven in our occasional series on why ESPs need, or don’t need, lots of IP addresses to send mail properly. I need many IP addresses so that I can work around ISP throttling limits Why this is right: There are ISPs that limit the number of emails that can be sent from a particular IP address in a given time period to quite a low level, as low as 1000 emails per hour per IP address...
This weekend we took the car in for service. Instead of dropping it off at the dealership, we found a small, local garage. Prominently positioned on the counter was their Email Privacy Policy. The full text of the notice. WEBSITE INFORMATION: When you visit the QualityTuneup.com website you are providing information about your visit to Kihon Media. We know which pages you visited, what is...
Number two of seven in our occasional series on why ESPs need, or don’t need, lots of IP addresses to send mail properly. I need lots of IP addresses so my MTAs can handle the volume of mail sent Why this is right One IP address per outbound smarthost is a sensible minimum. It is possible to set up multiple smarthosts behind a single IP address using a proxy server or reverse load balancer, and...
Having just returned home from another conference, my head is full of new ideas, new thoughts and new projects. I enjoy seeing old friends, making new contacts and sharing ideas. One thing I don’t enjoy, though, is listening to senders and marketers complaining about how hard it is to be a sender because the ISPs will not tell them what standards they need to meet. If the ISPs would just tell us...
I cannot tell you how many times over the last 10 years I’ve been talking to someone with a problem and had them tell me “but I’m a legitimate email marketer.” Most of them have at least one serious problem, from upstreams that are ready to terminate them for spamming through widespread blocking. In fact, the practices of most companies who proclaim “we’re...
Number one of seven in our occasional series on why ESPs need, or don’t need, lots of IP addresses to send mail properly. I need at least one IP address per customer, to handle IP based reputation Why this is right While DKIM is gradually moving the main key for reputation tracking to a domain based token, right now the main key that is used to track reputation is the sending IP address. If...
In my last post I discussed the background as to why an ISP will require their users to use their IP address allocation efficiently. I also mentioned in passing that I’d discussed ESP address allocation with both ESPs and ISPs recently. The ESP was talking about assigning a couple of dozen IP addresses to each customer, because they might be useful for spreading load and it would provide...
RSS - Posts