1. [Home](https://www.g2.com/)
2. ...
3. [Email Security Services Providers](https://www.g2.com/categories/email-security-services)
4. [PostMTA Discussions](https://www.g2.com/products/postmta/discuss)

[
 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_95dad8e26fa1e1277fb8aab4c74e63a0/postmta.png "Product Avatar Image")
](/products/postmta/reviews)

[

PostMTA

](/products/postmta/reviews)

(1)5.0/5

Self-hosted enterprise MTA built directly on KumoMTA — the world's fastest open-source mail transfer agent. Full control. No vendor lock-in. No per-email fees.

Show More

When users leave PostMTA reviews, G2 also collects common questions about the day-to-day use of PostMTA. These questions are then answered by our community of 850k professionals. Submit your question below and join in on the G2 Discussion.

* * *

### 100.0

Nps Score

### All PostMTA Discussions

Search

Most CommentedMost HelpfulCommon QuestionsNewest

All DiscussionsDiscussions with CommentsCommon QuestionsDiscussions without Comments

FilterFilter

Filter byExpand/Collapse 

Sort by

Most Commented

Most Helpful

Common Questions

Newest

Filter by

All Discussions

Discussions with Comments

Common Questions

Discussions without Comments

Sorry...

There are no questions about PostMTA yet.

## Start a New Software Discussion

Have a software question?

Get answers from real users and experts

[Start A Discussion](/products/postmta/discussions/new)

* * *

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_95dad8e26fa1e1277fb8aab4c74e63a0/postmta.png "Product Avatar Image")

### Have you used PostMTA before?

Answer a few questions to help the PostMTA community

[
Yes
](javascript:void(0))[
Yes
](https://www.g2.com/login?context=product_review&return_to=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fpostmta%2Fdiscuss%3Fsmall_ask%3Dpostmta)
No