Hello
Please help me my isp blocked 25 port and he not give me smtp relay and authentication details.
now i want to change me submission port to 587 without smtp relay and authentication.
it serious issue.please me as soon as possible.
send me answer on this email.
bhutabhishek63@gmail.com
Zimbra smtp 25 port blocked by isp and he not give smtp relay for smtp authentication on 587 port
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abhishek_bhut
- Posts: 1
- Joined: Wed Nov 24, 2021 3:56 am
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ianw1974
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Re: Zimbra smtp 25 port blocked by isp and he not give smtp relay for smtp authentication on 587 port
Hi,
If your ISP blocks port 25, then there are only two options. Either he gives you SMTP relay details so that you can send/receive emails. If not, then change ISP to an ISP that does give you SMTP relay ability. Or third option, get yourself a VPS at a hosting company like OVH, Linode, DigitalOcean, Vultr, etc, etc and install your mail server there.
You cannot send/receive emails between mail servers on port 587. Mail servers communicate on port 25. Port 587 is for email clients like Outlook, Thunderbird.
If your ISP blocks port 25, then there are only two options. Either he gives you SMTP relay details so that you can send/receive emails. If not, then change ISP to an ISP that does give you SMTP relay ability. Or third option, get yourself a VPS at a hosting company like OVH, Linode, DigitalOcean, Vultr, etc, etc and install your mail server there.
You cannot send/receive emails between mail servers on port 587. Mail servers communicate on port 25. Port 587 is for email clients like Outlook, Thunderbird.