Hi all – I’m sorry about this odd issue!
@iain616 when you get a chance, would you be willing to clarify some details on what you’re seeing? For example — it sounds like the test email in WP Mail SMTP is working (even when the “0” value is in place). Is that correct?
And if so, could you let me know a little more about what you see when an email does work? Specifically, does the From Email/From Name appear correctly?
In case it helps, I’m trying to sort out a couple of things with these details:
1) Whether SMTP can work properly for Office 365 even when the “0” value gets added.
2) Whether the issue you’re seeing with sending emails to an Office 365 email is more likely related to SMTP not working or additional filtering within the recipient account (which we’ve seen as an issue with some Office 365 emails in the past).
Thanks! Please let me know ??