receiving devcentral like spam mails

You can look in the email headers and see the origin IP address. Very likely they are just spoofed emails, and your address is simply inside a spammer's database, or someone is trying to phish your account.

I haven't received spam email from devcentral.

hi Again They are spoofed emails - no doubt about that - but if it is only my account which is used then must I do something about it - if we all got spammed the problem might be different. Thanks for the reply

i receieved that too last week. the header shows X-Originating-IP: [208.85.209.139] , which is f5. that stopped now. anybody know what happend? to me it looks like some f5 server was not patched properly.

now i understand...somebody was posting the spam messages and that caused to send mails to members. explanation below given already.

https://devcentral.f5.com/articles/blocking-spam-with-custom-attack-signatures

• Our site is designed to allow (and encourage) open communication among all our members. While we want everyone to share and collaborate, we obviously discourage malicious or just outright annoying posts on our site. So when we got hit with these spam messages, we quickly deleted them. In fact many of you helped identify and report these as spam messages...so thanks! This is a perfect example of that "caring for our community" stuff I was talking about earlier...good times. While we were able to delete these posts, we wanted a more proactive approach that stopped them before they ever hit our site.