Sending too many emails

I use MP3 with Sendgrid as the sending service. Had an email today from Sendgrid to say that I’d sent 10,000+ emails of my monthly 12,000 limit. Actually, I’d sent less than 600 (2×279) so I’m wondering if someone/something is accessing MP and sending stuff. I don’t have any of my email addresses operated through the host (just the gmail address in the info below)

I emailed Sendgrid to ask what they could see from their end and they’ve replied:

Thanks for reaching out to SendGrid support.

I have taken a look at the messages that have been sent out of your account that are in question. It appears that all of these emails have been sent out with the subject line of “Confirm your subscription to #NZWF”. with an originating IP address of “103.55.179.21”. We received 5,474 requests on the 23rd and 5,016 on the 22nd. All of which have the same subject and originating IP. Almost all of these emails were dropped due to being previously bounced addresses. Is it possible that something could have been triggered from your end resending out emails to a list of bounces?

I hope this helps! If you need further assistance or have any questions, feel free to reach back out to us and we’d be happy to help!

name: Admin
email: [email protected]
PHP version: 5.6.31
MailPoet Free version: 3.0.0
MailPoet Premium version: N/A
MailPoet Premium/MSS key:
WordPress version: 4.8.2
Database version: 10.0.32-MariaDB
Web server: Apache
Server OS: Linux cp5.hooplahosting.com 3.10.0-427.18.2.lve1.4.38.el7.x86_64 #1 SMP Thu Feb 23 12:34:25 EST 2017 x86_64
WP_MEMORY_LIMIT: 40M
WP_MAX_MEMORY_LIMIT: 256M
WP_DEBUG: false
PHP max_execution_time: 30
PHP memory_limit: 256M
PHP upload_max_filesize: 128M
PHP post_max_size: 8M
WordPress language: en_GB
Multisite environment?: No
Current Theme: Avada (version 5.1.6)
Active Plugin names: LayerSlider/layerslider.php, akismet/akismet.php, contact-form-7/wp-contact-form-7.php, cr3ativ-sponsor/cr3ativ-sponsor.php, custom-facebook-feed/custom-facebook-feed.php, duplicate-post/duplicate-post.php, events-manager/events-manager.php, fusion-builder/fusion-builder.php, fusion-core/fusion-core.php, jetpack/jetpack.php, mailpoet/mailpoet.php, post-types-order/post-types-order.php, relevanssi/relevanssi.php, revslider/revslider.php, wp-maintenance-mode/wp-maintenance-mode.php
Sending Method: SendGrid
Sending Frequency: 750 emails every 15 minutes
Task Scheduler method: WordPress
Cron ping URL: https://www.nzwebfest.co.nz?mailpoet_router&endpoint=cron_daemon&action=ping
Default FROM address: [email protected]
Default Reply-To address: [email protected]
Bounce Email Address: [email protected]
Total number of subscribers: 282

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