The above receive addresses are from: http ://blendergoyusuu6g.onion/blender.html <-WARNING! Probable SCAM LINK - Do not use!
I tried to contact the e-mail mailbox, but I never responded.
To the best of my knowledge... the only "official" BitBlender URL is:
http://bitblendervrfkzr.onion/Refer here:
https://bitcointalksearch.org/topic/ann-bitcoin-blender-anonymous-bitcoin-mixer-436467Looks like you may have sent coins to a fake "blender".
Also, It might simply be a matter that your Electrum version is too old. As per the notification on Electrum website, versions older than 3.3 will not be able to connect to Electrum servers:
Warning: Electrum versions older than 3.3 can no longer connect to public servers, and must be upgraded. This is in order to prevent user exposure to phishing messages. Do not download Electrum from any another source than electrum.org.
And the notification on Tails website:
Known issues
ELECTRUM IS OUTDATED AND CANNOT CONNECT TO SERVERS
Electrum in Tails cannot connect anymore to Electrum servers.
The version of Electrum in Tails is vulnerable to a phishing attack that tricks people in updating to a malicious version of Electrum which is not distributed from the official Electrum website.
You are safe unless you try to do the malicious update manually.
To prevent this phishing attack, all trustworthy Electrum servers now prevent older versions from connecting to them.
Unfortunately, newer versions of Electrum are not available in Debian and cannot be integrated easily in Tails. Given the lack of maintenance of Electrum in Debian, we are still assessing what is best to do in Tails.
Until then, your wallet is not lost and you can restore it from its seed using an up-to-date version of Electrum outside of Tails.
There are some instructions for getting version 3.3.4 to work with Tails here:
https://blog.thestever.net/2019/02/26/upgrading-electrum-on-tails-to-3-3-4/