Spam. It is ubiquitous. All around. In our case, we even get spam through the contact form of our website. Every single day. The issue is so big that practically all big email providers have added anti-spam measures. This allows users to get less spam, which is great, while still receiving genuine messages. That is normally the case. Unfortunately some providers must have such a big of problem, that at times they reject genuine messages too. What's worse, in some cases those messages don't even get to the user's spam folder.
In our case, we have had problems with customers with addresses from Hotmail/MSN and AOL. Messages to their users sent from our automated system were rejected. This meant that licenses were not getting to their legitimate owners in an automated way, and we had to resend them manually. In some cases, even the manually sent messages failed to reach the final users. So, we had to get Hotmail and AOL account to contact the users whose messages were not reaching them. Not ideal. If you were one of them, our apologies.
After investigation, we found out some of the rules that these providers use to reject email. We made several changes to the DNS configuration, and made several requests to our hosting provider. All these were intended to get our messages through. It seems like it is working fine now. We want to thank all the people who helped us detect this issue and resolve it.
Now, as spam is still going to be among us for a while, if you need to contact us for whatever reason, please provide us with an alternative email address. Particularly, if you buy Xslimmer and do not receive your license after a few minutes. Thank you!