spam problem

My entire server is getting blacklisted, allegedly because someone is using one of the domains to send spam. I very much doubt if any of my clients is doing this, so it's probably some other organisation. To counteract whatever is going on I have edited the SPF records for every domain to...

Hello, Spamassassin works fine for the mailboxes. Only with Mailman's mail lists does a lot of spam end up in the mailboxes. Can Spamassassin be switched before Mailman?

Hello, Have the problem, that I get send from my own mail address [email protected] Fishing emails since some weeks now! How can I block these emails send from my own Domain with Plesk??? OS ‪CentOS Linux 7.6.1810 (Core) Product Plesk Onyx Version 17.8.11 Update...

Hello, I have a problem with sending emails from my server. When I try to send an email to a gmail address, it return an error: Undelivered Mail Returned to Sender This is the mail system at host alfa.nester.cz. I'm sorry to have to inform you that your message could not be delivered to one or...

Hello, in the last weeks all the emails sent by a client (e.g. outlook, thunderbird, etc.) are moved on the spam folder of Gmail. If I send the same email from the webmail (from the server where is hosted the website) arrive correctly (no spam folder) and Google reported for "spf" the label...

I mean I see in the mail log connections from varying IPs, always different. I think what they're doing is sending a "bounce" message and using it to spam others. Maybe "bounce" messages are allowed through no matter what (no authentication?), because I've had trouble stopping it. I tried...

Hi Together, at the moment I got very much spam mails. All of them are polish and have a spamscore of more then 5.5. So I thought yeah easys just adjust spamassasin in my plesk panel to 5 and the spam is filtered. But no.... all the mails come through. I think spamassasin is not working. But...

Hi there, We've been hit with spammers and having a hard time finding the source. I have followed the guidelines for identifying potential PHP scripts and no scripts are found to be malicious. We were running qmail but we moved to postfix. The problem started with qmail with spam coming from...

Hello, I wanted to ask for help to see if I can solve a problem. First, I apologize for my English We are receiving a lot of spam; The spam mails almost always follow the same pattern, but change the subject, message body, recipients and domain from which "supposedly" sent. In the server...