{"id":1520,"date":"2015-04-29T04:34:50","date_gmt":"2015-04-28T20:34:50","guid":{"rendered":"http:\/\/www.computersolutions.cn\/blog\/?p=1520"},"modified":"2015-05-13T19:53:18","modified_gmt":"2015-05-13T11:53:18","slug":"gmail-and-other-google-hosted-mail-delivery-issues","status":"publish","type":"post","link":"https:\/\/www.computersolutions.cn\/blog\/2015\/04\/gmail-and-other-google-hosted-mail-delivery-issues\/","title":{"rendered":"Gmail (and other google hosted mail) delivery issues"},"content":{"rendered":"

Update<\/strong> <\/p>\n

Google has added another MX (mail server) for Google Hosted mail – alt4.gmail-smtp-in.l.google.com.<\/p>\n

This does not currently appear to be blocked (unlike their other 4 MX servers), so we have removed the forwarding, and mail is transiting normally.<\/p>\n

\n

China has completely blocked gmail hosted mail as of today [28th April 2015]<\/p>\n

This means that all mails heading to google’s servers is now blocked from Chinese ISP’s like ourselves.<\/p>\n

Symptoms will include bounce messages where our server has given up retrying to send out the mail, as the remote server is not accessible over the Chinese internet.<\/p>\n

EG – <\/p>\n

Hi. This is the qmail-send program at mail.computersolutions.cn.
\nI’m afraid I wasn’t able to deliver your message to the following addresses.
\nThis is a permanent error; I’ve given up. Sorry it didn’t work out. <\/p>\n

:
\nSorry, I wasn’t able to establish an SMTP connection. (#4.4.1)
\nI’m not going to try again; this message has been in the queue too long. <\/p><\/blockquote>\n

In the interim, we have added forwarding for all gmail addressed mail to transit through our oversea’s mail servers in the USA.<\/p>\n

This should solve email delivery issues for gmail addresses – essentially anything addressed to someone @gmail.com<\/p>\n

We are looking at solutions for resolving delivery to other google hosted mail clients, this will take some time to come up with a usable solution. In the interim, we can manually add routes on a server by server basis.<\/p>\n

Be aware that this specific issue is out of our control, and we can only mitigate against it.<\/p>\n

Examples of google hosted mail clients from recent queries\/failure notices:<\/p>\n

teamsequel.com – Their mail is served by google.<\/p>\n

\ndig mx teamsequel.com<\/p>\n

; <<>> DiG 9.8.4-rpz2+rl005.12-P1 <<>> mx teamsequel.com
\n;; global options: +cmd
\n;; Got answer:
\n;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11757\n;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 2, ADDITIONAL: 0\n\n;; QUESTION SECTION:\n;teamsequel.com.\t\t\tIN\tMX\n\n;; ANSWER SECTION:\nteamsequel.com.\t\t2320\tIN\tMX\t5 ALT1.ASPMX.L.GOOGLE.com.\nteamsequel.com.\t\t2320\tIN\tMX\t5 ALT2.ASPMX.L.GOOGLE.com.\nteamsequel.com.\t\t2320\tIN\tMX\t10 ALT3.ASPMX.L.GOOGLE.com.\nteamsequel.com.\t\t2320\tIN\tMX\t10 ALT4.ASPMX.L.GOOGLE.com.\nteamsequel.com.\t\t2320\tIN\tMX\t1 ASPMX.L.GOOGLE.com.<\/p><\/blockquote>\n

dreamonproductions.com – their mail is served by google.<\/p>\n

dig mx dreamonproductions.com<\/p>\n

; <<>> DiG 9.8.4-rpz2+rl005.12-P1 <<>> mx dreamonproductions.com
\n;; global options: +cmd
\n;; Got answer:
\n;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 35828\n;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 0\n\n;; QUESTION SECTION:\n;dreamonproductions.com.\t\tIN\tMX\n\n;; ANSWER SECTION:\ndreamonproductions.com.\t3600\tIN\tMX\t5 alt1.aspmx.l.google.com.\ndreamonproductions.com.\t3600\tIN\tMX\t1 aspmx.l.google.com.\ndreamonproductions.com.\t3600\tIN\tMX\t10 aspmx2.googlemail.com.\ndreamonproductions.com.\t3600\tIN\tMX\t5 alt2.aspmx.l.google.com.\ndreamonproductions.com.\t3600\tIN\tMX\t10 aspmx3.googlemail.com.<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

Update Google has added another MX (mail server) for Google Hosted mail – alt4.gmail-smtp-in.l.google.com. This does not currently appear to be blocked (unlike their other 4 MX servers), so we have removed the forwarding, and mail is transiting normally. China has completely blocked gmail hosted mail as of today [28th April 2015] This means that […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[73,111,91],"tags":[87,509,11,532,508],"class_list":["post-1520","post","type-post","status-publish","format-standard","hentry","category-email","category-government","category-service-issues","tag-china","tag-gmail","tag-google","tag-government","tag-issue"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.computersolutions.cn\/blog\/wp-json\/wp\/v2\/posts\/1520","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.computersolutions.cn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.computersolutions.cn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.computersolutions.cn\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.computersolutions.cn\/blog\/wp-json\/wp\/v2\/comments?post=1520"}],"version-history":[{"count":3,"href":"https:\/\/www.computersolutions.cn\/blog\/wp-json\/wp\/v2\/posts\/1520\/revisions"}],"predecessor-version":[{"id":1524,"href":"https:\/\/www.computersolutions.cn\/blog\/wp-json\/wp\/v2\/posts\/1520\/revisions\/1524"}],"wp:attachment":[{"href":"https:\/\/www.computersolutions.cn\/blog\/wp-json\/wp\/v2\/media?parent=1520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.computersolutions.cn\/blog\/wp-json\/wp\/v2\/categories?post=1520"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.computersolutions.cn\/blog\/wp-json\/wp\/v2\/tags?post=1520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}