Why, oh why do there seem to be constant reoccurring issues sending emails via desktop. Had constant issues trying to sort for a family member new laptop after there old mac mini would not connect, Laptop was Windows 10 and fully updates.
I now have same issues from my Mac mini using apple mail and also thunderbird.
Mail seems to send most times online although I have had a couple of problems recently which sent 2nd or 3r time.
Ringing support is useless as they do not fully understand that just because I can send when logging in online it does not mean that there are not issues with SMTP servers.
I have tried both blueyonder and virginmedia smtp server settings but still no joy.
To make it even worse, if I remove the account from the app then re-add it works for a very short while.
Thanks for the info, I did have a look at this earlier but it did not give me any solution to resolve the issue, I think l can do a log direct from the email app in OS X but again not sure how it will resolve the issue and not sure why it seems to work for a short while if profile/account removed then re-added
Here's how the Forum works. You tell us what the problem is. If we can work out from the original post what the issue is, then we will suggest a fix. If not, then we will ask for information, where necessary advising what steps to take to provide the info.
Now if you go back to my post above then you will see that if you launch Thunderbird with a specific .bat file (windows) or .command file (Mac OS) then we can turn on SMTP logging, which will give us a lot more information.
Alternatively if you open a terminal window in Mac OS you can enter the following line: