В первый раз тех. поддержка написала следующее:
у вас превышено место и спам идет с сервера:
Dec 7 21:15:56 clientid1454 postfix/error[457]: 35DD27BF03: to=, relay=none, delay=351023, delays=351023/0.02/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/error[456]: 8119672CCE: to=, relay=none, delay=393482, delays=393482/0.02/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/smtp[31437]: certificate verification failed for mta7.am0.yahoodns.net[98.138.112.38]:25: untrusted issuer /C=US/O=VeriSign, Inc./OU=Class 3 Public Primary Certification Authority
Dec 7 21:15:56 clientid1454 postfix/error[364]: 98FE0171FB: to=, relay=none, delay=42, delays=42/0.02/0/0.01, dsn=5.0.0, status=bounced (User unknown in virtual alias table)
Dec 7 21:15:56 clientid1454 postfix/error[457]: 8AFD57897B: to=, relay=none, delay=371318, delays=371318/0.02/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/error[456]: F31F76AAFD: to=, relay=none, delay=417462, delays=417462/0.01/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/error[457]: 8D00A667AD: to=, relay=none, delay=490398, delays=490398/0.01/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/cleanup[412]: 636701748B: message-id=<20151207181556.636701748B@clientid1454.vps.undns.ru>
Dec 7 21:15:56 clientid1454 postfix/error[456]: 03FFC72708: to=, relay=none, delay=395364, delays=395364/0.02/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/bounce[463]: 8D00A667AD: sender non-delivery notification: 636701748B
Dec 7 21:15:56 clientid1454 postfix/error[457]: 843C876424: to=, relay=none, delay=379302, delays=379302/0.02/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mx-eu.mail.am0.yahoodns.net[188.125.69.79] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/error[487]: A20CD667C7: to=, relay=none, delay=426685, delays=426685/0.02/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/error[457]: 8C0B483D69: to=, relay=none, delay=324899, delays=324899/0.02/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/error[456]: AF37370BFE: to=, relay=none, delay=400597, delays=400597/0.01/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/error[457]: F230970676: to=, relay=none, delay=402254, delays=402254/0.01/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/error[487]: 892086A4DB: to=, relay=none, delay=460581, delays=460581/0.02/0/0, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mx-ha03.web.de[212.227.15.17] refused to talk to me: 554-web.de (mxweb003) Nemesis ESMTP Service not available 554-No SMTP service 554 invalid DNS PTR resource record, IP=81.177.180.117)
Dec 7 21:15:56 clientid1454 postfix/cleanup[414]: 6F00E1748D: message-id=<20151207181556.6F00E1748D@clientid1454.vps.undns.ru>
Dec 7 21:15:56 clientid1454 postfix/error[456]: 838187D3F7: to=, relay=none, delay=344706, delays=344706/0.01/0/0, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mx00.gmx.com[74.208.5.4] refused to talk to me: 554-gmx.net (mxgmxus005) Nemesis ESMTP Service not available 554-No SMTP service 554 invalid DNS PTR resource record, IP=81.177.180.117)
Dec 7 21:15:56 clientid1454 postfix/error[457]: 838187D3F7: to=, relay=none, delay=344706, delays=344706/0.01/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/bounce[462]: 892086A4DB: sender non-delivery notification: 6F00E1748D
Dec 7 21:15:56 clientid1454 postfix/error[457]: 838187D3F7: to=, relay=none, delay=344706, delays=344706/0.01/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/error[456]: 379697ADD6: to=, relay=none, delay=357191, delays=357191/0.01/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
Dec 7 21:15:56 clientid1454 postfix/error[488]: 8ECE27EBB1: to=, relay=none, delay=336206, delays=336206/0.01/0/0, dsn=4.4.2, status=deferred (delivery temporarily suspended: lost connection with mta7.am0.yahoodns.net[98.138.112.32] while sending RCPT TO)
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