diff --git a/Dockerfile b/Dockerfile
index 181b4a4..25a8a6c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM alpine:3.7@sha256:8c03bb07a531c53ad7d0f6e7041b64d81f99c6e493cb39abba56d956b
 
 MAINTAINER Leonardo Gatica <lgatica@protonmail.com>
 
-RUN apk add --no-cache mongodb-tools py2-pip && \
+RUN apk add --no-cache mongodb-tools curl py2-pip && \
   pip install pymongo awscli && \
   mkdir /backup
 
diff --git a/README.md b/README.md
index ee573a1..91b08cc 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ docker run -d --name mongodump \
   lgatica/mongodump-s3
 ```
 
-### Inmediatic backup
+### Immediate backup
 
 ```bash
 docker run -d --name mongodump \
@@ -65,9 +65,22 @@ docker run -d --name mongodump \
   lgatica/mongodump-s3
 ```
 
-## IAM Policity
+### Slack Hook
+```bash
+docker run -d --name mongodump \
+  -e "MONGO_URI=mongodb://user:pass@host:port/dbname"
+  -e "AWS_ACCESS_KEY_ID=your_aws_access_key"
+  -e "AWS_SECRET_ACCESS_KEY=your_aws_secret_access_key"
+  -e "AWS_DEFAULT_REGION=us-west-1"
+  -e "S3_BUCKET=your_aws_bucket"
+  -e "SLACK_URI=your_slack_uri"
+  lgatica/mongodump-s3
+```
+
 
-You need to add a user with the following policies. Be sure to change `your_bucket` by the correct.
+## IAM Policy
+
+You need to add a user with the following policies. Be sure to change `your_bucket` by the correct name.
 
 ```xml
 {
@@ -98,11 +111,19 @@ You need to add a user with the following policies. Be sure to change `your_buck
 }
 ```
 
-## Extra environmnet
+## Extra environment
 
 - `S3_PATH` - Default value is `mongodb`. Example `s3://your_bucket/mongodb`
 - `MONGO_COMPLETE` - Default not set. If set doing backup full mongodb
 - `MAX_BACKUPS` - Default not set. If set doing it keeps the last n backups in /backup
+- `BACKUP_NAME` - Default is `$(date -u +%Y-%m-%d_%H-%M-%S)_UTC.gz`. If set this is the name of the backup file. Useful when using s3 versioning. (Remember to place .gz extension on your filename)
+- `EXTRA_OPTIONS` - Default not set.
+- `SLACK_URI` - Default not set. Sends a curl notification to the Slack Incoming Webhook.
+
+## Troubleshoot
+
+1. If you get SASL Authentication failure, add  `--authenticationDatabase=admin` to EXTRA_OPTIONS.
+2. If you get "Failed: error writing data for collection ... Unrecognized field 'snapshot'", add `--forceTableScan` to EXTRA_OPTIONS.
 
 ## License
 
diff --git a/backup.sh b/backup.sh
index 5ddc97b..588a01a 100755
--- a/backup.sh
+++ b/backup.sh
@@ -1,24 +1,56 @@
 #!/usr/bin/env sh
 
 OPTIONS=`python /usr/local/bin/mongouri`
-BACKUP_NAME="$(date -u +%Y-%m-%d_%H-%M-%S)_UTC.gz"
+OPTIONS="$OPTIONS $EXTRA_OPTIONS"
+DEFAULT_BACKUP_NAME="$(date -u +%Y-%m-%d_%H-%M-%S)_UTC.gz"
+BACKUP_NAME=${BACKUP_NAME:-$DEFAULT_BACKUP_NAME}
+LOCAL_BACKUP_ROOT_FOLDER="/backup"
+LOCAL_DUMP_LOCATION="$LOCAL_BACKUP_ROOT_FOLDER/dump"
+
+notify() {
+  if [ "${SLACK_URI}" ]; then
+    message="$BACKUP_NAME has been backed up  at s3://${S3_BUCKET}/${S3_PATH}/${BACKUP_NAME}"
+    if [ "${1}" != "0" ]; then
+      message="Unable to backup $BACKUP_NAME at s3://${S3_BUCKET}/${S3_PATH}/${BACKUP_NAME}. See Logs."
+    fi
+    curl -X POST --data-urlencode "payload={\"text\": \"$message\"}" $SLACK_URI
+  fi
+}
 
 # Run backup
-mongodump ${OPTIONS} -o /backup/dump
+mongodump ${OPTIONS} -o "${LOCAL_DUMP_LOCATION}"
+status=$?
+if [ "${status}" -eq "1" ]; then
+  echo "ERROR: Mongodump failed."
+  notify 1
+  exit 1
+fi
+
 # Compress backup
-cd /backup/ && tar -cvzf "${BACKUP_NAME}" dump
+tar -cvzf "${LOCAL_BACKUP_ROOT_FOLDER}/${BACKUP_NAME}" "${LOCAL_DUMP_LOCATION}"
+
 # Upload backup
-aws s3 cp "/backup/${BACKUP_NAME}" "s3://${S3_BUCKET}/${S3_PATH}/${BACKUP_NAME}"
+aws s3 cp "${LOCAL_BACKUP_ROOT_FOLDER}/${BACKUP_NAME}" "s3://${S3_BUCKET}/${S3_PATH}/${BACKUP_NAME}"
+status=$?
+echo $status
+if [ "${status}" != "0" ]; then
+  echo "ERROR: AWS Upload failed."
+  notify 1
+  exit 1
+fi
+
+notify 0
+
 # Delete temp files
-rm -rf /backup/dump
+rm -rf "${LOCAL_DUMP_LOCATION}"
 
 # Delete backup files
 if [ -n "${MAX_BACKUPS}" ]; then
-  while [ $(ls /backup -w 1 | wc -l) -gt ${MAX_BACKUPS} ];
+  while [ $(ls ${LOCAL_BACKUP_ROOT_FOLDER} -w 1 | wc -l) -gt ${MAX_BACKUPS} ];
   do
     BACKUP_TO_BE_DELETED=$(ls /backup -w 1 | sort | head -n 1)
-    rm -rf /backup/${BACKUP_TO_BE_DELETED}
+    rm -rf ${LOCAL_BACKUP_ROOT_FOLDER}/${BACKUP_TO_BE_DELETED}
   done
 else
-  rm -rf /backup/*
-fi
+  rm -rf ${LOCAL_BACKUP_ROOT_FOLDER}/*
+fi
\ No newline at end of file