Your email server has been put on a list of servers that spam by one or more of the
following entities;
njabl.org
ordb.org
dsbl.org
spamcop.net
spamhaus.org
Please reference these sites to determine how to remove your email server from the
list(s).
554 5.6.1 Rejecting executable attachment due to security policies. Please see: ...
You sent an email with an attachment with one or more of the following
extensions;
* .ade, .adp, .bas, .bat, .chm, .cmd, .com, .cpl, .crt, .exe,
* .hlp, .hta, .inf, .ins, .isp, .js, .jse, .lnk, .mdb, .mde,
* .msc, .msi, .msp, .mst, .pcd, .pif, .reg, .scr, .sct, .shs,
* .shb, .url, .vb, .vbe, .vbs, .wsc, .wsf, .wsh
These are the some of the most commonly suspect file types by which viruses are
propogated, and are therefore denied entry into this network.
If you need to send these types of files please ZIP the files
before you send them
550 5.7.1 Rejecting connection due to security policies - Invalid hostname '...' see:
...
Your email server is providing a hostname to our email server, which does not
properly resolve to an ip address.
This problem can be fixed by your Internet Domain Administrator. Please forward the
error message that directed you here, to that person.
