Error message on all emails out about potential spam etc so cannot send although been OK for 18 months or more.
BT has been internet provider and email provider for years. Have used Mozilla Thunderbird for about 18 months on my laptop with no problem. Two days ago, I started getting error message on all (with one type of exception) emails that I have tried to send. I have checked that they did not arrive. Message says the mail server responded that email could not be sent because of subject matter, link or attachment etc. It asked me to check or edit message and send again. But this is on all messages even short, simple ones. the only exception is on ones to myself at BT address or to my own google email address but not other people's google mail. I can send from BT webmail, from Outlook on my laptop and from mobile. I have checked all the steps suggested on mozilla web pages (except changing the password). I have also spoken at length to BT, double checked SMTP settings etc. with them. They say that in view of points made above, the problem must be related to Thunderbird. I have tried sending in Thuderbird's safe mode, tried turning firewall off and if I go to Thunderbird Tools, add-ons etc, I see that McAfee anti spam is disabled. I am not at all a techie person and this is making me very anxious so any help would be greatly appreciated. I am sorry that I cannot work out how to send a picture of my SMTP settings but they have been the same since I started using Thunderbird; I have checked them and also went through them with BT.
Dodatni detalji o sistemu
- Korisnički agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.18362
re :Thunderbird Tools, add-ons etc, I see that McAfee anti spam is disabled.
Uninstall/Remove that McAfee addon to remove all traces of it. then restart Thunderbird.
Having fully removed the McAfee addon and restarted Thunderbird to ensure it does not have that addon anywhere, test sending. If still not ok.... Close down computer. Restart Computer in 'Safe Mode with Networking' mode. Start Thunderbird. Test sending Report back on results.
Thank you very much Toad-Hall. I think I understand the idea of getting McAfee as far away from Thunderbird as possible but the problem is that there seems to be no option on my system to remove the McAfee add-on. As far as I can see, there is only the option to enable or disable it. There are two other add-ons on the list above McAfee and those both have the option to remove them. So I am wondering whether the fact that McAfee is provided by BT (my broadband provider) as part of my broadband service is somehow making a difference but I am not quite sure why that should make a difference. Thank you again.
Mcafee are in themselves are little better than a virus. You have to disable their anti spam setting in their Mcfee product or they will insert it every time Thunderbird starts.
Irresponsible actions like these are one of the reasons internet browsers and email programs are developing a reputation for being unreliable and are a large part of the move to a new add-on architecture. Installing add-ons that break the product can not be tolerated in the long term.