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<blockquote data-quote="Sidewinder" data-source="post: 379062" data-attributes="member: 9512"><p>Got the MX &amp; A records set up OK.</p><p></p><p>Got the reverse DNS set up after requesting to ISP.</p><p></p><p>Could send internal emails OK.</p><p></p><p>Could not send &amp; receive external emails.</p><p></p><p>Checked firewall settings in router/modem, all ports set OK.</p><p></p><p>No sending and receiving.</p><p></p><p>Waited a day or two for things to "propagate" &amp; tried.</p><p></p><p>Still nothing.</p><p></p><p>Then remembered that there are two firewalls to set.</p><p></p><p>The FW in the Syology, is set to block all IP's apart from those in the UK.</p><p></p><p>So try sending &amp; receiving between UK based addresses, OK! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /> </p><p></p><p>Unblocked the email ports only on the Synology and it seems to work!!! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /> </p><p></p><p>So, I think sorted.</p><p></p><p>Time will tell, need to see if I can get off the remaining Rats Dyna spam DB now, if it is needed.</p></blockquote><p></p>
[QUOTE="Sidewinder, post: 379062, member: 9512"] Got the MX & A records set up OK. Got the reverse DNS set up after requesting to ISP. Could send internal emails OK. Could not send & receive external emails. Checked firewall settings in router/modem, all ports set OK. No sending and receiving. Waited a day or two for things to "propagate" & tried. Still nothing. Then remembered that there are two firewalls to set. The FW in the Syology, is set to block all IP's apart from those in the UK. So try sending & receiving between UK based addresses, OK! ;) Unblocked the email ports only on the Synology and it seems to work!!! ;) So, I think sorted. Time will tell, need to see if I can get off the remaining Rats Dyna spam DB now, if it is needed. [/QUOTE]
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