Delays to email coming from PHP on Hostopia

[#1]

I don't want to jump the gun .. but I don't seem to getting emails again (as of this morning as far as can tell). Anyone else noticed ?

[#2]

Working fine here, although the ones sent to Plusnet email addresses are being spammed.
Edit: I've reset the spam filters and messages are no longer being identified as spam

[#3]

Thanks Bob, that did the trick - mails now getting through.
Warning to others though, all the previous test mails I tried earlier have 'black-holed', so they may have missed some today  ..

[#4]

I suspect the messages were getting black-holed because of this (non-default) setting:

[#5]

Bob, checked my settings and have Spam filtering enabled but 'Discard Obvious' is at the Off setting, Aggressiveness is set to 1. 
Yesterday's emails still didn't make it through - new mails came as soon as you reset ...

[#6]

The spam settings are unique to each of your domains. There's a drop down at the top of the settings page. Try selecting each of your domains in turn, I reckon it's going to be enabled for at least one of them.

[#7]

Thanks Bob, you are correct - checked again and there was one domain lurking with Discard on  (assumed all were same - which have now set)
Might not stop over zealous spam marking but at least should avoid black-hole now ...