My hosting company even recently suspended my server because of this same domain.
I have removed it from my mail server,
removed it from my websites and DNS
uninstalled mail server and installed back.
yet the domain is still sending mails and making me reach bandwidth.
its eating upmy memory and I don't know how to stop it.
The domain name in question is icoretrade247.com
Apr 24 21:11:05 amgcustom postfix/smtp[26507]: B94892E992A: to=<loralion@poczta.onet.pl>, relay=mx.poczta.onet.pl[213.180.147.146]:25, delay=423987, delays=423710/270/3.4/3.3, dsn=4.1.8, status=deferred (host mx.poczta.onet.pl[213.180.147.146] said: 450 4.1.8 <support@icoretrade247.com>: Sender address rejected: Domain not found (in reply to RCPT TO command))
Apr 24 21:11:06 amgcustom postfix/smtp[26648]: 7FCE63E9221: to=<jurgen.jan@skynet.be>, relay=mx.glb.proximus.be[195.238.22.25]:25, delay=427829, delays=425462/2366/0.42/0, dsn=4.0.0, status=deferred (host mx.glb.proximus.be[195.238.22.25] refused to talk to me: 421 #4.4.5 Too many connections from your host.)
Apr 24 21:11:06 amgcustom postfix/smtp[11479]: 1B7B4298BFE: to=<johafotkaa@interia.pl>, relay=mx.interia.pl[217.74.65.64]:25, delay=437216, delays=423609/13538/1.3/68, dsn=4.1.8, status=deferred (host mx.interia.pl[217.74.65.64] said: 450 4.1.8 <support@icoretrade247.com>: Sender address rejected: Domain not found (in reply to RCPT TO command))
Apr 24 21:11:06 amgcustom postfix/smtp[24802]: BD5F32984FB: to=<boryszwd@poczta.onet.pl>, relay=mx.poczta.onet.pl[213.180.147.146]:25, delay=399164, delays=398886/270/2.8/4.9, dsn=4.1.8, status=deferred (host mx.poczta.onet.pl[213.180.147.146] said: 450 4.1.8 <support@icoretrade247.com>: Sender address rejected: Domain not found (in reply to RCPT TO command))
Apr 24 21:11:06 amgcustom postfix/smtp[24926]: 1C21A28BBC2: to=<nigolllll@interia.pl>, relay=mx.interia.pl[217.74.65.64]:25, delay=413576, delays=399968/13514/1.3/93, dsn=4.1.8, status=deferred (host mx.interia.pl[217.74.65.64] said: 450 4.1.8 <support@icoretrade247.com>: Sender address rejected: Domain not found (in reply to RCPT TO command))
Apr 24 21:11:07 amgcustom postfix/smtp[25681]: B29C42C6B4E: to=<0zii@op.pl>, relay=mx.poczta.onet.pl[213.180.147.146]:25, delay=417448, delays=417169/265/9.9/4.4, dsn=4.1.8, status=deferred (host mx.poczta.onet.pl[213.180.147.146] said: 450 4.1.8 <support@icoretrade247.com>: Sender address rejected: Domain not found (in reply to RCPT TO command))
Apr 24 21:11:08 amgcustom postfix/smtp[19807]: B90993A4E12: to=<karpowicz0@poczta.onet.pl>, relay=mx.poczta.onet.pl[213.180.147.146]:25, delay=394892, delays=394612/270/3/6.9, dsn=4.1.8, status=deferred (host mx.poczta.onet.pl[213.180.147.146] said: 450 4.1.8 <support@icoretrade247.com>: Sender address rejected: Domain not found (in reply to RCPT TO command))
Apr 24 21:11:08 amgcustom postfix/smtp[25693]: BC4D8287DDA: to=<bobek401@op.pl>, relay=mx.poczta.onet.pl[213.180.147.146]:25, delay=435211, delays=434931/269/3.5/6.8, dsn=4.1.8, status=deferred (host mx.poczta.onet.pl[213.180.147.146] said: 450 4.1.8 <support@icoretrade247.com>: Sender address rejected: Domain not found (in reply to RCPT TO command))
Apr 24 21:11:08 amgcustom postfix/smtp[25698]: B20333AABE2: to=<adas_85@poczta.onet.pl>, relay=mx.poczta.onet.pl[213.180.147.146]:25, delay=436018, delays=435738/271/3.1/5.4, dsn=4.1.8, status=deferred (host mx.poczta.onet.pl[213.180.147.146] said: 450 4.1.8 <support@icoretrade247.com>: Sender address
