Thanks for the blindingly quick reply. > * Bryan Harrison <br...@bryanharrison.com>: >> I've recently migrated services to a new mailserver, which has of course >> promptly started kicking out dire errors that didn't show during testing. > > You are running gilded-bat.laughingboot.net?
Yes. > >> If there's more information in the logs, I'm not finding it, but I'm >> relatively inexperienced with postfix and so may well be missing something. > > egrep "(error|warning|fatal):" /var/log/mail.log > See below, and thanks. Jan 10 12:59:26 gilded-bat postfix/smtpd[2962]: warning: 115.73.168.41: hostname adsl.viettel.vn verification failed: nodename nor servname provided, or not known Jan 10 12:59:31 gilded-bat postfix/smtpd[2998]: warning: 72.9.103.93: hostname 72-9-103-93.reverse.ezzi.net verification failed: nodename nor servname provided, or not known Jan 10 12:59:36 gilded-bat postfix/smtpd[2962]: warning: 189.35.48.61: hostname bd23303d.virtua.com.br verification failed: nodename nor servname provided, or not known Jan 10 13:00:39 gilded-bat postfix/smtpd[3076]: warning: No server certs available. TLS won't be enabled Jan 10 13:00:39 gilded-bat postfix/smtpd[3076]: warning: 166.205.141.237: hostname 166-205-141-237.mobile.mymmode.com verification failed: nodename nor servname provided, or not known Jan 10 13:00:45 gilded-bat postfix/smtpd[2962]: warning: 125.163.36.208: hostname 208.subnet125-163-36.speedy.telkom.net.id verification failed: nodename nor servname provided, or not known Jan 10 13:01:11 gilded-bat postfix/smtpd[2962]: warning: 166.205.141.237: hostname 166-205-141-237.mobile.mymmode.com verification failed: nodename nor servname provided, or not known Jan 10 13:01:41 gilded-bat postfix/smtpd[2976]: warning: 166.205.141.237: hostname 166-205-141-237.mobile.mymmode.com verification failed: nodename nor servname provided, or not known Jan 10 13:02:34 gilded-bat postfix/smtpd[3104]: warning: 189.114.29.204: hostname 189.114.29.204.static.host.gvt.net.br verification failed: nodename nor servname provided, or not known Jan 10 13:03:15 gilded-bat postfix/smtpd[3191]: warning: No server certs available. TLS won't be enabled Jan 10 13:03:15 gilded-bat postfix/smtpd[3191]: warning: 166.205.141.237: hostname 166-205-141-237.mobile.mymmode.com verification failed: nodename nor servname provided, or not known Jan 10 13:03:24 gilded-bat postfix/smtpd[2943]: warning: 189.62.135.210: hostname bd3e87d2.virtua.com.br verification failed: nodename nor servname provided, or not known Jan 10 13:03:47 gilded-bat postfix/smtpd[2943]: warning: 166.205.141.237: hostname 166-205-141-237.mobile.mymmode.com verification failed: nodename nor servname provided, or not known Jan 10 13:04:18 gilded-bat postfix/smtpd[2962]: warning: 166.205.141.237: hostname 166-205-141-237.mobile.mymmode.com verification failed: nodename nor servname provided, or not known Jan 10 13:05:11 gilded-bat postfix/smtpd[2998]: warning: 189.145.114.121: hostname dsl-189-145-114-121-dyn.prod-infinitum.com.mx verification failed: nodename nor servname provided, or not known Jan 10 13:05:44 gilded-bat postfix/smtpd[2976]: warning: 92.10.246.251: hostname host-92-10-246-251.as43234.net verification failed: nodename nor servname provided, or not known Jan 10 13:05:51 gilded-bat postfix/smtpd[3268]: warning: No server certs available. TLS won't be enabled Jan 10 13:05:51 gilded-bat postfix/smtpd[3268]: warning: 166.205.141.237: hostname 166-205-141-237.mobile.mymmode.com verification failed: nodename nor servname provided, or not known Jan 10 13:06:01 gilded-bat postfix/smtpd[2976]: warning: 187.41.55.207: hostname 18741055207.user.veloxzone.com.br verification failed: nodename nor servname provided, or not known Jan 10 13:06:24 gilded-bat postfix/smtpd[2962]: warning: 166.205.141.237: hostname 166-205-141-237.mobile.mymmode.com verification failed: nodename nor servname provided, or not known Jan 10 13:06:54 gilded-bat postfix/smtpd[2998]: warning: 166.205.141.237: hostname 166-205-141-237.mobile.mymmode.com verification failed: nodename nor servname provided, or not known Jan 10 13:07:09 gilded-bat postfix/smtpd[2943]: warning: 77.72.251.34: hostname c-251-34.idea-tele.com verification failed: nodename nor servname provided, or not known Jan 10 13:08:16 gilded-bat postfix/smtpd[3334]: warning: 174.124.70.13: hostname 174-124-70-13.dyn.centurytel.net verification failed: nodename nor servname provided, or not known Jan 10 13:08:28 gilded-bat postfix/smtpd[3362]: warning: No server certs available. TLS won't be enabled Jan 10 13:08:28 gilded-bat postfix/smtpd[3362]: warning: 166.205.141.237: hostname 166-205-141-237.mobile.mymmode.com verification failed: nodename nor servname provided, or not known Jan 10 13:09:00 gilded-bat postfix/smtpd[3338]: warning: 166.205.141.237: hostname 166-205-141-237.mobile.mymmode.com verification failed: nodename nor servname provided, or not known Jan 10 13:09:09 gilded-bat postfix/smtpd[3377]: warning: 208.131.131.19: hostname lightformsny.com verification failed: nodename nor servname provided, or not known
