* healthchecks.io integration
* sentry APM integration

* add rejected submissions redirect option
* add prometheus metrics on /metrics endpoint with basic auth
* add `email` and `domain` values (if present within submission) to matrix event properties
* fix rare case with nil postmark client
* migrate to mautrix-go 0.17.x
* lower validator log level to warn
* do not ban for technical endpoints (like /metrics)
* customizable message template
* support json submissions (Content-Type: application/json)
* submissions are sent with `m.notice` msg type

new env vars:

* BUSCARRON_NAME_REDIRECT_REJECT
* BUSCARRON_NAME_RATELIMIT_SHARED (missed in v1.3.1)
* BUSCARRON_NAME_TEXT

removed env vars:

* BUSCARRON_NOENCRYPTION

### Features :sparkles:

* Shared rate limit across forms

### Bugfixes :bug:

* Do not ban internal IPs

### Misc :zzz:

* Updated deps
* Enabled vendoring

### Features :sparkles:

* Advanced email validation, using using actual connection to the sender's SMTP address
* Email spamlist with wildcards support
* Permanent ban list, based on IP hashes / IDs

### Breaking changes :warning:

* ARMv7 (arm32/aarch32) architecture is deprecated

### Misc :zzz:

* Updated deps

* update deps

### Features :sparkles:

* Spam checker can work with with email localpart list
* Add optional domain validation on the forms level
* Add `NOENCRYPTION` option

### Bugfixes :bug:

* Added CORS headers

### Misc :zzz:

* Updated deps

* automatic confirmation emails with postmark
* templates support for redirect URLs
* automatically ban spammers, scanners and bots

initial release