![]() The sender address is not a massive company i.e. reset passwords) get blocked as a false positive as they are generated by bots, however, situations like today I can see multiple attempts within 15 minutes of each other. ![]() I can understand when automated emails (i.e. ![]() If the sending mail server attempts to send again - within the correct timeframe - the receive server will see that it matches the first converstion triplet and push it through. I understand how greylisting works whereby if the receiving mail server receives an new "triplet" conversation it will send a temporary rejection email. Adding the domain to the exceptions will solve this, When checking the logs I could see the email was being caught by the greylist, however, there were multiple attempts from the same sender with a few minutes of each other but kept being blocked by the greylist. Today, a user reported they were not receiving an email from a particular sender. I've come across a few situations which do not match the behaviour I expect from the greylist. ![]() I'm just trying to understand what is happening with GFI's greylist. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |