I am grateful for all your attention! As I have said below, the use of the SMTP component has now allowed me to send email from the system to gmail accounts.

Peter, wasn't your initial problem sending mails to GMAIL addresses?

This test confirms the successful sending of messages to MYGRWORLD.COM, though.

Not sure whether I should start wondering again or just stop... ;)

@Arsalan, I have no problem with SMTPer. As you see I connect to my domain which is hosted on A2Hosting

@Peter which port you tried ? 587?

Because I can not able to connect with A2hosting with that port or 467. Also any SMTP test tool hangs too example https://www.smtper.net/ So please tell us which port and configurations you used for A2 hosting connection.

@Grep, oh go to mxtoolbox.com, they will give you a rundown of what they see as needing to be done for your mail server. So, use your mail.domain.com as the domain name and choose to run MX Lookup.

@Greg, you will need to ensure that the DNS for your mail server is configured with correct DNS records for spf, DMARK and DKIM. Google is particular over their construction. There is plenty of help around if you search on Google, and your provider should also be able to help.

@Michael, I have just reinstalled, since I was getting 504 when I tried to even run the configuration! Now, i can configure it and have done so with that different port. I have been able to successfully send an invite. So, thank you, things seem to be working as expected

I'm using a vm with VMWare and having email issues to gmail. I assumed everything would be configured .. was that wrong? What needs to be done or undone? Thanks

Try to use port 587 instead.

Aside from that: 2 days ago you wrote you had transferred your domain to IONOS, now it's A2?

I attach an image of what I am trying to configure with the SMTP component. The mygrtechnology.com domain is hosted with A2Hosting using port 465. The response on submit is the 504 error.