Hi List One of the local electricity plants is sending invoices via hosted Office 365 emails services to it's customers, many hosted on our email platform. It's a larger Office 365 customer.
Many of those emails were rejected as spam. So they opened a case with our abuse desk. I noticed their IP address was blacklisted for a couple of days and managed to get an evidence of the email that caused the listing. It was definitely spam and it looks like it was sent by a different Office 365 customer which shares the same Office 365 'outlook.com' outbound IP address. It's not yet clear ob this was due to one of their accounts being phished or if they 'purchased' web-harvested spamtrap addresses somewhere. Can Office 365 customers request a static IP address from Microsoft to avoid such issues, or is this something they have to live with? Unfortunately they also seem not to get any support from Microsoft when facing such an issue. Mit freundlichen Grüssen -Benoît Panizzon- -- I m p r o W a r e A G - Leiter Commerce Kunden ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 Pratteln Fax +41 61 826 93 01 Schweiz Web http://www.imp.ch ______________________________________________________ _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
