Can´t send e-mails - authentication error

Question

Hi, 
 
 I'm configuring a XG 115 V.17 (has the lastest firmware). I created rules in firewall for each type of traffic. At this moment, only mail and http/s is allowed. I receive e-mail, but I can&acute;t send (external e-mail servers). Outook gives an error: 
 Receiving' reported error (0x800CCC1A) : 'Your server does not support the connection encryption type you have specified. Try changing the encryption method. Contact your mail server administrator or Internet service provider (ISP) for additional assistance.' I thought it was something related with TLS/SSL, but even when I configure the mail client with SMPT, port 25, no authentication, it doesn&acute;t work. The firewall rule for outgoing e-mail had the work web policy applied. I removed it, but the issue remained. Best regards

darnoK · Answer

Please, move rule No 5 on top and check outlook. If the problem will still exist, show us configuration of rule No 1 and No 5. I think, You need only one business rule on top. Look a this pictures.

Huy Vu · Answer

Hi, 
 The top rule of picture above is auto-created by Sophos when you use Email Protection feature in MTA mode. It will scan traffic SMTP/S and then if you generate SMTP traffic from client, it will be scaned and maybe break connect.