Can't whitelist address containing multiple dots before @

[tekwizard]

I have a few addresses which can not be white listed. Some of them are coming from like yahoo and having the structure xxx.xxxATyahooDOTcom or even xxx.xxx.xxxATyahooDOTcom . So now I don't want to whitelist all of the yahoo accounts with *ATyahooDOTcom . I have tried to use regular expressions and write it xxx\.xxxATyahooDOTcom or *xxxATyahooDOTcom but the addresses are removed immediately when I try to save the white list in MailScanner FE.

[Sarah]

You might be able to add these manually to the whitelist, but you will not be able to add them using the front-end as the syntax only allows *@domain.com, user@domain.com, or an IP address. In other words you can only use an asterisk wildcard as the ENTIRE first part of the email address, not for just part of it.