A common complaint among the Twittersphere is that most mail providers cannot block (or filter) email addresses with non-standard characters because they believe them to be an invalid or malformed address.
So @Outlook knows this isn’t a valid email address yet still allows it into my inbox but then won’t let me block it because its invalid!!! pic.twitter.com/2DyIsznKiS
— James Sarjeant (@jamessarjeant) December 5, 2016
done with @Outlook. can't block spam because "invalid email address" includes a ?. How does an invalid address even get to my inbox!!!
— Chris Ruggiero (@Ruggy10) February 27, 2017
@Outlook What am I meant to do about the hundreds of spam emails with addresses like this that I can't block? pic.twitter.com/b4rDVT5oON
— RoyRoy (@Ayeitsmeroy) February 15, 2017
@Outlook When I try to block some Spam senders, I cant. Because they put this ¨?¨ in the final of the sender email, so Outlook cant block it pic.twitter.com/l8g9AfCFwN
— pinportal (@pinportal) February 5, 2017
@Outlook this is such a gripe… why do you prevent us from blocking invalid email addresses? It means i can't 'select all' and mass block ? pic.twitter.com/ZelvSCrVAe
— Jem|Mar (@Jemm_R) February 3, 2017
Bulc Club accepts mail based on a host of criteria, but mostly those relying on the IETF’s Email Address Internationalization standards. Once mail is received, it’s parsed based on the member’s preference, Bulc Club Member Rating, and Forwarding Options. All sender email addresses and domains may be rated by users and checked by the public.
Bulc Club doesn’t discriminate, and user ratings for addresses that contain the special characters are treated the same as those that don’t (e.g., ! # $ % & ‘ * + – = ? ^ _ ` { | } ~). There are few exemptions (such as forward slashes), which may be rated, but cannot be checked by the public.
Unlike Outlook.com and various other mail services, Bulc Club allows you to filter out mail from spammers who use addresses specifically designed to prevent filtering. It’s one more way that, together, we’re ridding the world of spam, forever. Join us, it’s entirely free.