Hi,
I wanted to address your recent spam issue and provide some recommendations to help avoid this problem in the future. Firstly, it's important to ensure your technical setup is correct, your email lists are clean, and you avoid using certain text phrases that might trigger spam filters.
Upgrading to Acymailing version 8 before January 31st, 2024, would also be advisable due to the discontinuation of support for version 5. https://forum.acymailing.com/d/4694-end-of-v5-support-planned-in-january-24
If you have the Enterprise version of Acymailing, it can handle bounces automatically, disabling subscribers that show permanent errors. Additionally, Acychecker can help keep your lists clean by checking if email addresses are valid and disabling them if not. https://www.acychecker.com/
It's worth noting that sending emails through Siteground may not be the most effective approach, as email providers such as Gmail and Outlook may see it as a disadvantage and put your emails in users' spam folders. Using a third-party sending service could potentially improve your deliverability, as these services send enough email to be whitelisted by major email providers. So yes, Acymailing Sending Service can help you to improve your email deliverability.
Finally, please keep in mind that all providers will block you if you frequently cause too many bounces or spam complaints.
If you're interested in using Acychecker and/or Acymailing Sending Service, please note that you would need to migrate to version 8.