1. It is opensource
2. It is the oldest MTA out there Review collected by and hosted on G2.com.
It is a bit complex as it supports some old networks (UUCP etc) Review collected by and hosted on G2.com.
I like that proofpoint has the capability to filter out potentially unwanted emails before the end user even has a chance to open malicious messages. The ability to go in review and see all the emails that passed through and what was quarantined is a bug positive as it gives the user an idea of what is being stopped and allowed and even allows for additional customization. Review collected by and hosted on G2.com.
I dislike how strict the filter is. I have since gone in and modified and allowed some addresses to pass through the filter but it delayed a pivotal testing phase for an alpha software pivotal to progression in my field. This may be a special circumstance but it is the only complaint I have thus far. Review collected by and hosted on G2.com.
It's ease of use and information it provides in supporting business decisions that can be enabled as rules with varying possibilities. Review collected by and hosted on G2.com.
How we don't know why some emails don't go through ! wish there was a better way to track or add AI to the logic of blocking and tackling good vs bad guys. Review collected by and hosted on G2.com.
The portal allowing end users to unlock non threat email on their own Review collected by and hosted on G2.com.
Proofpoint is an industry leader no complaints about any of this product's offering Review collected by and hosted on G2.com.
Speed and ease of operation - installation also quick Review collected by and hosted on G2.com.
not applicable in this case - single purpose product that served itself well Review collected by and hosted on G2.com.