Also, do you use disposable emails? What for?
I have a lot of emails made with simple login and I use the same one only for three websites. Then I get all emails forwarded to the same email, and an email for personal use (family, work, friends…) also forwarded to that one. So something like this:
o o o o personal
\ | / /
| /
| /
o
I use one e-mail address for personal communication and one different address for each online registration.
I use a self-hosted spamgourmet for that purpose that redirects all the e-mails to my personal one.
Spamgourmet is super cool for that use as each e-mail is created on the fly and only accepts 3 e-mails by default. You can customize the number of accepted e-mails or trusted senders, …
I sometimes use a spamgourmet address for people I don’t know or trust.