Thanks supermathie – I don’t have access to carrd.co’s SES logs, but I have port 25 logs from another failed attempt. (Wish I knew how to interpret.) Anything jump out at you here..?
SES failure - Discourse mail-receiver log
Oct 30 16:50:11 forum-mail-receiver postfix/anvil[76091]: statistics: max connection count 1 for (smtp:159.203.42.156) at Oct 30 16:46:35
Oct 30 16:50:11 forum-mail-receiver postfix/anvil[76091]: statistics: max cache size 1 at Oct 30 16:46:35
Oct 30 17:49:01 forum-mail-receiver postfix/smtpd[76093]: connect from a69-230.smtp-out.amazonses.com[54.240.69.230]
Oct 30 17:49:01 forum-mail-receiver postfix/smtpd[76093]: lost connection after EHLO from a69-230.smtp-out.amazonses.com[54.240.69.230]
Oct 30 17:49:01 forum-mail-receiver postfix/smtpd[76093]: disconnect from a69-230.smtp-out.amazonses.com[54.240.69.230] ehlo=1 commands=1
root@forum:/var/discourse#
SES failure - Wireshark port 25 log
No. Time Source Destination Protocol Length Info
11913 85.864926 54.240.69.230 64.176.213.39 TCP 74 50903 → 25 [SYN] Seq=0 Win=26883 Len=0 MSS=1460 SACK_PERM TSval=1554444054 TSecr=0 WS=128
11914 85.865305 64.176.213.39 54.240.69.230 TCP 74 25 → 50903 [SYN, ACK] Seq=0 Ack=1 Win=43440 Len=0 MSS=1460 SACK_PERM TSval=958362575 TSecr=1554444054 WS=1024
11921 85.871994 54.240.69.230 64.176.213.39 TCP 66 50903 → 25 [ACK] Seq=1 Ack=1 Win=27008 Len=0 TSval=1554444061 TSecr=958362575
12239 86.221038 64.176.213.39 54.240.69.230 SMTP 84 S: 220 ESMTP server
12245 86.227770 54.240.69.230 64.176.213.39 TCP 66 50903 → 25 [ACK] Seq=1 Ack=19 Win=27008 Len=0 TSval=1554444417 TSecr=958362931
12246 86.228748 54.240.69.230 64.176.213.39 SMTP 103 C: EHLO a69-230.smtp-out.amazonses.com
12247 86.228791 64.176.213.39 54.240.69.230 TCP 66 25 → 50903 [ACK] Seq=19 Ack=38 Win=44032 Len=0 TSval=958362939 TSecr=1554444418
12248 86.228963 64.176.213.39 54.240.69.230 SMTP 220 S: 250-forum-mail-receiver.localdomain | PIPELINING | SIZE 10240000 | VRFY | ETRN | ENHANCEDSTATUSCODES | 8BITMIME | DSN | CHUNKING
12253 86.236796 54.240.69.230 64.176.213.39 TCP 66 50903 → 25 [FIN, ACK] Seq=38 Ack=173 Win=28032 Len=0 TSval=1554444426 TSecr=958362939
12254 86.237257 64.176.213.39 54.240.69.230 TCP 66 25 → 50903 [FIN, ACK] Seq=173 Ack=39 Win=44032 Len=0 TSval=958362947 TSecr=1554444426
12257 86.243960 54.240.69.230 64.176.213.39 TCP 66 50903 → 25 [ACK] Seq=39 Ack=174 Win=28032 Len=0 TSval=1554444433 TSecr=958362947
For comparison:
Gmail success - Wireshark port 25 log
No. Time Source Destination Protocol Length Info
1173638 893.998102 162.142.125.93 64.176.213.39 TCP 74 27763 → 25 [SYN] Seq=0 Win=42340 Len=0 MSS=1460 SACK_PERM TSval=1729720003 TSecr=0 WS=1024
1173639 893.998341 64.176.213.39 162.142.125.93 TCP 74 25 → 27763 [SYN, ACK] Seq=0 Ack=1 Win=43440 Len=0 MSS=1460 SACK_PERM TSval=2319295245 TSecr=1729720003 WS=1024
1173667 894.015884 162.142.125.93 64.176.213.39 TCP 54 27763 → 25 [RST] Seq=1 Win=0 Len=0
1178853 897.638926 162.142.125.207 64.176.213.39 TCP 74 60246 → 25 [SYN] Seq=0 Win=21900 Len=0 MSS=1460 SACK_PERM TSval=1654559109 TSecr=0 WS=1024
1178855 897.639088 64.176.213.39 162.142.125.207 TCP 74 25 → 60246 [SYN, ACK] Seq=0 Ack=1 Win=43440 Len=0 MSS=1460 SACK_PERM TSval=461108143 TSecr=1654559109 WS=1024
1178884 897.656814 162.142.125.207 64.176.213.39 TCP 66 60246 → 25 [ACK] Seq=1 Ack=1 Win=22528 Len=0 TSval=1654559127 TSecr=461108143
1179106 897.805588 64.176.213.39 162.142.125.207 SMTP 84 S: 220 ESMTP server
1179134 897.823322 162.142.125.207 64.176.213.39 TCP 66 60246 → 25 [ACK] Seq=1 Ack=19 Win=22528 Len=0 TSval=1654559293 TSecr=461108310
1179139 897.825315 162.142.125.207 64.176.213.39 SMTP 86 C: EHLO www.censys.io
1179140 897.825350 64.176.213.39 162.142.125.207 TCP 66 25 → 60246 [ACK] Seq=19 Ack=21 Win=44032 Len=0 TSval=461108329 TSecr=1654559295
1179142 897.825495 64.176.213.39 162.142.125.207 SMTP 220 S: 250-forum-mail-receiver.localdomain | PIPELINING | SIZE 10240000 | VRFY | ETRN | ENHANCEDSTATUSCODES | 8BITMIME | DSN | CHUNKING
1179173 897.844902 162.142.125.207 64.176.213.39 SMTP 76 C: STARTTLS
1179174 897.845039 64.176.213.39 162.142.125.207 SMTP 108 S: 502 5.5.1 Error: command not implemented
1179207 897.865559 162.142.125.207 64.176.213.39 TCP 66 60246 → 25 [FIN, ACK] Seq=31 Ack=215 Win=22528 Len=0 TSval=1654559335 TSecr=461108349
1179208 897.865879 64.176.213.39 162.142.125.207 TCP 66 25 → 60246 [FIN, ACK] Seq=215 Ack=32 Win=44032 Len=0 TSval=461108370 TSecr=1654559335
1179237 897.883702 162.142.125.207 64.176.213.39 TCP 66 60246 → 25 [ACK] Seq=32 Ack=216 Win=22528 Len=0 TSval=1654559353 TSecr=461108370
1423203 1062.340039 2001:4860:4864:20::33 2001:19f0:1000:68ec:5400:4ff:fe92:8e2b TCP 94 45423 → 25 [SYN] Seq=0 Win=65535 Len=0 MSS=1440 SACK_PERM TSval=980279080 TSecr=0 WS=256
1424699 1063.379486 2001:4860:4864:20::33 2001:19f0:1000:68ec:5400:4ff:fe92:8e2b TCP 94 [TCP Retransmission] 45423 → 25 [SYN] Seq=0 Win=65535 Len=0 MSS=1440 SACK_PERM TSval=980280120 TSecr=0 WS=256
1426247 1064.403473 2001:4860:4864:20::33 2001:19f0:1000:68ec:5400:4ff:fe92:8e2b TCP 94 [TCP Retransmission] 45423 → 25 [SYN] Seq=0 Win=65535 Len=0 MSS=1440 SACK_PERM TSval=980281144 TSecr=0 WS=256
1427782 1065.427579 2001:4860:4864:20::33 2001:19f0:1000:68ec:5400:4ff:fe92:8e2b TCP 94 [TCP Retransmission] 45423 → 25 [SYN] Seq=0 Win=65535 Len=0 MSS=1440 SACK_PERM TSval=980282168 TSecr=0 WS=256
1429343 1066.451555 2001:4860:4864:20::33 2001:19f0:1000:68ec:5400:4ff:fe92:8e2b TCP 94 [TCP Retransmission] 45423 → 25 [SYN] Seq=0 Win=65535 Len=0 MSS=1440 SACK_PERM TSval=980283192 TSecr=0 WS=256
1430904 1067.475717 2001:4860:4864:20::33 2001:19f0:1000:68ec:5400:4ff:fe92:8e2b TCP 94 [TCP Retransmission] 45423 → 25 [SYN] Seq=0 Win=65535 Len=0 MSS=1440 SACK_PERM TSval=980284216 TSecr=0 WS=256
1433947 1069.523326 2001:4860:4864:20::33 2001:19f0:1000:68ec:5400:4ff:fe92:8e2b TCP 94 [TCP Retransmission] 45423 → 25 [SYN] Seq=0 Win=65535 Len=0 MSS=1440 SACK_PERM TSval=980286264 TSecr=0 WS=256
1440507 1073.555346 2001:4860:4864:20::33 2001:19f0:1000:68ec:5400:4ff:fe92:8e2b TCP 94 [TCP Retransmission] 45423 → 25 [SYN] Seq=0 Win=65535 Len=0 MSS=1440 SACK_PERM TSval=980290296 TSecr=0 WS=256
1452771 1081.619544 2001:4860:4864:20::33 2001:19f0:1000:68ec:5400:4ff:fe92:8e2b TCP 94 [TCP Retransmission] 45423 → 25 [SYN] Seq=0 Win=65535 Len=0 MSS=1440 SACK_PERM TSval=980298360 TSecr=0 WS=256
1476480 1098.003562 2001:4860:4864:20::33 2001:19f0:1000:68ec:5400:4ff:fe92:8e2b TCP 94 [TCP Retransmission] 45423 → 25 [SYN] Seq=0 Win=65535 Len=0 MSS=1440 SACK_PERM TSval=980314744 TSecr=0 WS=256
1511662 1122.242370 209.85.160.45 64.176.213.39 TCP 74 45424 → 25 [SYN] Seq=0 Win=65535 Len=0 MSS=1412 SACK_PERM TSval=806841994 TSecr=0 WS=256
1511663 1122.242862 64.176.213.39 209.85.160.45 TCP 74 25 → 45424 [SYN, ACK] Seq=0 Ack=1 Win=43440 Len=0 MSS=1460 SACK_PERM TSval=51132547 TSecr=806841994 WS=1024
1511715 1122.273627 209.85.160.45 64.176.213.39 TCP 66 45424 → 25 [ACK] Seq=1 Ack=1 Win=269824 Len=0 TSval=806842025 TSecr=51132547
1511825 1122.343466 64.176.213.39 209.85.160.45 SMTP 84 S: 220 ESMTP server
1511876 1122.374090 209.85.160.45 64.176.213.39 TCP 66 45424 → 25 [ACK] Seq=1 Ack=19 Win=269824 Len=0 TSval=806842125 TSecr=51132647
1511877 1122.374242 209.85.160.45 64.176.213.39 SMTP 96 C: EHLO mail-oa1-f45.google.com
1511878 1122.374276 64.176.213.39 209.85.160.45 TCP 66 25 → 45424 [ACK] Seq=19 Ack=31 Win=44032 Len=0 TSval=51132678 TSecr=806842126
1511880 1122.374429 64.176.213.39 209.85.160.45 SMTP 220 S: 250-forum-mail-receiver.localdomain | PIPELINING | SIZE 10240000 | VRFY | ETRN | ENHANCEDSTATUSCODES | 8BITMIME | DSN | CHUNKING
1511929 1122.405234 209.85.160.45 64.176.213.39 SMTP 112 C: MAIL FROM:<[REDACTED]@gmail.com> SIZE=3017
1511930 1122.405311 209.85.160.45 64.176.213.39 SMTP 102 C: RCPT TO:<[CATEGORY]@forum.tasat.org>
1511931 1122.405404 64.176.213.39 209.85.160.45 TCP 66 25 → 45424 [ACK] Seq=173 Ack=113 Win=44032 Len=0 TSval=51132709 TSecr=806842157
1511932 1122.405532 209.85.160.45 64.176.213.39 SMTP 2866 C: BDAT 3017 LAST | DATA fragment, 2784 bytes
1511933 1122.405660 209.85.160.45 64.176.213.39 SMTP/IMF 299 from: Todd Zimmerman <[REDACTED]@gmail.com>, subject: Space operas where the hero is not a "Chosen One", (text/plain) (text/html)
1511993 1122.446635 64.176.213.39 209.85.160.45 TCP 66 25 → 45424 [ACK] Seq=173 Ack=3146 Win=41984 Len=0 TSval=51132751 TSecr=806842157
1512387 1122.715764 64.176.213.39 209.85.160.45 SMTP 94 S: 250 2.1.0 Ok | 250 2.1.5 Ok
1512445 1122.751435 209.85.160.45 64.176.213.39 TCP 66 45424 → 25 [ACK] Seq=3146 Ack=201 Win=269824 Len=0 TSval=806842503 TSecr=51133020
1512446 1122.751497 64.176.213.39 209.85.160.45 SMTP 114 S: 250 2.0.0 Ok: 3017 bytes queued as 3D37D309944
1512497 1122.782171 209.85.160.45 64.176.213.39 TCP 66 45424 → 25 [ACK] Seq=3146 Ack=249 Win=269824 Len=0 TSval=806842534 TSecr=51133055
1512499 1122.783518 209.85.160.45 64.176.213.39 SMTP 72 C: QUIT
1512500 1122.783562 64.176.213.39 209.85.160.45 TCP 66 25 → 45424 [ACK] Seq=249 Ack=3152 Win=43008 Len=0 TSval=51133087 TSecr=806842535
1512501 1122.783584 209.85.160.45 64.176.213.39 TCP 66 45424 → 25 [FIN, ACK] Seq=3152 Ack=249 Win=269824 Len=0 TSval=806842535 TSecr=51133055
1512503 1122.783969 64.176.213.39 209.85.160.45 SMTP 81 S: 221 2.0.0 Bye
1512504 1122.783994 64.176.213.39 209.85.160.45 TCP 66 25 → 45424 [FIN, ACK] Seq=264 Ack=3153 Win=43008 Len=0 TSval=51133088 TSecr=806842535
1512555 1122.814604 209.85.160.45 64.176.213.39 TCP 54 45424 → 25 [RST] Seq=3153 Win=0 Len=0